From 820d2308b8562104d0819597603ab4cd65e94392 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 28 Aug 2025 00:55:48 +0000
Subject: [PATCH 1/5] Initial plan


From 26f77c83f16e0cd40a218d22dc678d2dff122638 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 28 Aug 2025 01:11:37 +0000
Subject: [PATCH 2/5] Remove multiapi functionality from repository - complete
 removal

Co-authored-by: msyyc <70930885+msyyc@users.noreply.github.com>
---
 cspell.yaml                                   |    4 -
 docs/client/initializing.md                   |   17 -
 docs/client/models.md                         |   21 -
 docs/generate/multiapi.md                     |   76 -
 docs/generate/readme.md                       |    2 -
 eng/pipelines/ci.yml                          |    8 -
 eng/scripts/util.py                           |    2 +-
 packages/autorest.python/README.md            |   29 +-
 packages/autorest.python/autorest/codegen.py  |    1 -
 .../autorest/jsonrpc/server.py                |    3 -
 .../autorest/multiapi/__init__.py             |  185 --
 .../autorest/multiapi/models/__init__.py      |   16 -
 .../autorest/multiapi/models/client.py        |   68 -
 .../autorest/multiapi/models/code_model.py    |  142 --
 .../autorest/multiapi/models/config.py        |   24 -
 .../models/constant_global_parameter.py       |   11 -
 .../multiapi/models/global_parameter.py       |   34 -
 .../multiapi/models/global_parameters.py      |   53 -
 .../autorest/multiapi/models/imports.py       |  181 --
 .../multiapi/models/mixin_operation.py        |   38 -
 .../multiapi/models/operation_group.py        |   29 -
 .../multiapi/models/operation_mixin_group.py  |   89 -
 .../autorest/multiapi/serializers/__init__.py |  145 --
 .../multiapi/serializers/import_serializer.py |  181 --
 .../templates/multiapi_config.py.jinja2       |   89 -
 .../templates/multiapi_init.py.jinja2         |   22 -
 .../templates/multiapi_models.py.jinja2       |    9 -
 .../multiapi_operations_mixin.py.jinja2       |   39 -
 .../multiapi_service_client.py.jinja2         |  163 --
 .../templates/multiapi_version.py.jinja2      |    8 -
 .../autorest/multiapi/utils.py                |   51 -
 packages/autorest.python/samples/readme.md    |    3 -
 .../multiapi/generated/azure/__init__.py      |    1 -
 .../generated/azure/multiapi/__init__.py      |    1 -
 .../azure/multiapi/sample/__init__.py         |   20 -
 .../azure/multiapi/sample/_configuration.py   |   65 -
 .../sample/_multiapi_service_client.py        |  183 --
 .../multiapi/sample/_operations_mixin.py      |  174 --
 .../azure/multiapi/sample/_serialization.py   | 2025 ----------------
 .../azure/multiapi/sample/_utils/__init__.py  |   10 -
 .../multiapi/sample/_utils/serialization.py   | 2025 ----------------
 .../azure/multiapi/sample/_version.py         |    8 -
 .../azure/multiapi/sample/aio/__init__.py     |   10 -
 .../multiapi/sample/aio/_configuration.py     |   65 -
 .../sample/aio/_multiapi_service_client.py    |  183 --
 .../multiapi/sample/aio/_operations_mixin.py  |  175 --
 .../generated/azure/multiapi/sample/models.py |    9 -
 .../generated/azure/multiapi/sample/py.typed  |    1 -
 .../azure/multiapi/sample/v1/__init__.py      |   29 -
 .../multiapi/sample/v1/_configuration.py      |   66 -
 .../azure/multiapi/sample/v1/_metadata.json   |  196 --
 .../sample/v1/_multiapi_service_client.py     |  124 -
 .../azure/multiapi/sample/v1/_patch.py        |   21 -
 .../multiapi/sample/v1/_utils/__init__.py     |    6 -
 .../sample/v1/_utils/serialization.py         | 2032 -----------------
 .../azure/multiapi/sample/v1/_utils/utils.py  |   25 -
 .../azure/multiapi/sample/v1/aio/__init__.py  |   29 -
 .../multiapi/sample/v1/aio/_configuration.py  |   66 -
 .../sample/v1/aio/_multiapi_service_client.py |  129 --
 .../azure/multiapi/sample/v1/aio/_patch.py    |   21 -
 .../sample/v1/aio/operations/__init__.py      |   27 -
 .../_multiapi_service_client_operations.py    |  497 ----
 .../_operation_group_one_operations.py        |   97 -
 .../sample/v1/aio/operations/_patch.py        |   21 -
 .../multiapi/sample/v1/models/__init__.py     |   33 -
 .../multiapi/sample/v1/models/_models_py3.py  |  116 -
 .../azure/multiapi/sample/v1/models/_patch.py |   21 -
 .../multiapi/sample/v1/operations/__init__.py |   27 -
 .../_multiapi_service_client_operations.py    |  575 -----
 .../_operation_group_one_operations.py        |  118 -
 .../multiapi/sample/v1/operations/_patch.py   |   21 -
 .../azure/multiapi/sample/v1/py.typed         |    1 -
 .../azure/multiapi/sample/v2/__init__.py      |   29 -
 .../multiapi/sample/v2/_configuration.py      |   66 -
 .../azure/multiapi/sample/v2/_metadata.json   |  145 --
 .../sample/v2/_multiapi_service_client.py     |  127 --
 .../azure/multiapi/sample/v2/_patch.py        |   21 -
 .../multiapi/sample/v2/_utils/__init__.py     |    6 -
 .../sample/v2/_utils/serialization.py         | 2032 -----------------
 .../azure/multiapi/sample/v2/_utils/utils.py  |   25 -
 .../azure/multiapi/sample/v2/aio/__init__.py  |   29 -
 .../multiapi/sample/v2/aio/_configuration.py  |   66 -
 .../sample/v2/aio/_multiapi_service_client.py |  133 --
 .../azure/multiapi/sample/v2/aio/_patch.py    |   21 -
 .../sample/v2/aio/operations/__init__.py      |   29 -
 .../_multiapi_service_client_operations.py    |  153 --
 .../_operation_group_one_operations.py        |  199 --
 .../_operation_group_two_operations.py        |  100 -
 .../sample/v2/aio/operations/_patch.py        |   21 -
 .../multiapi/sample/v2/models/__init__.py     |   29 -
 .../multiapi/sample/v2/models/_models_py3.py  |   71 -
 .../azure/multiapi/sample/v2/models/_patch.py |   21 -
 .../multiapi/sample/v2/operations/__init__.py |   29 -
 .../_multiapi_service_client_operations.py    |  201 --
 .../_operation_group_one_operations.py        |  242 --
 .../_operation_group_two_operations.py        |  122 -
 .../multiapi/sample/v2/operations/_patch.py   |   21 -
 .../azure/multiapi/sample/v2/py.typed         |    1 -
 .../azure/multiapi/sample/v3/__init__.py      |   29 -
 .../multiapi/sample/v3/_configuration.py      |   66 -
 .../azure/multiapi/sample/v3/_metadata.json   |  145 --
 .../sample/v3/_multiapi_service_client.py     |  127 --
 .../azure/multiapi/sample/v3/_patch.py        |   21 -
 .../multiapi/sample/v3/_utils/__init__.py     |    6 -
 .../sample/v3/_utils/serialization.py         | 2032 -----------------
 .../azure/multiapi/sample/v3/_utils/utils.py  |   25 -
 .../azure/multiapi/sample/v3/aio/__init__.py  |   29 -
 .../multiapi/sample/v3/aio/_configuration.py  |   66 -
 .../sample/v3/aio/_multiapi_service_client.py |  133 --
 .../azure/multiapi/sample/v3/aio/_patch.py    |   21 -
 .../sample/v3/aio/operations/__init__.py      |   29 -
 .../_multiapi_service_client_operations.py    |  181 --
 .../_operation_group_one_operations.py        |  236 --
 .../_operation_group_two_operations.py        |  194 --
 .../sample/v3/aio/operations/_patch.py        |   21 -
 .../multiapi/sample/v3/models/__init__.py     |   38 -
 .../multiapi/sample/v3/models/_models_py3.py  |  112 -
 .../models/_multiapi_service_client_enums.py  |   23 -
 .../azure/multiapi/sample/v3/models/_patch.py |   21 -
 .../multiapi/sample/v3/operations/__init__.py |   29 -
 .../_multiapi_service_client_operations.py    |  223 --
 .../_operation_group_one_operations.py        |  270 ---
 .../_operation_group_two_operations.py        |  239 --
 .../multiapi/sample/v3/operations/_patch.py   |   21 -
 .../azure/multiapi/sample/v3/py.typed         |    1 -
 .../samples/specification/multiapi/readme.md  |   67 -
 packages/autorest.python/tasks.py             |   44 -
 .../test/multiapi/AcceptanceTests/__init__.py |    0
 .../AcceptanceTests/asynctests/__init__.py    |    0
 .../asynctests/multiapi_base.py               |  219 --
 .../asynctests/test_multiapi.py               |  139 --
 ...test_multiapi_credential_default_policy.py |   46 -
 .../test_multiapi_custom_base_url.py          |   54 -
 .../asynctests/test_multiapi_data_plane.py    |  108 -
 .../asynctests/test_multiapi_keyword_only.py  |   61 -
 .../asynctests/test_multiapi_security.py      |   34 -
 .../asynctests/test_multiapi_submodule.py     |   78 -
 .../test/multiapi/AcceptanceTests/conftest.py |   74 -
 .../multiapi/AcceptanceTests/multiapi_base.py |  194 --
 .../multiapi/AcceptanceTests/test_multiapi.py |  136 --
 ...test_multiapi_credential_default_policy.py |   44 -
 .../test_multiapi_custom_base_url.py          |   50 -
 .../test_multiapi_data_plane.py               |  104 -
 .../test_multiapi_keyword_only.py             |   58 -
 .../AcceptanceTests/test_multiapi_no_async.py |   32 -
 .../AcceptanceTests/test_multiapi_security.py |   32 -
 .../test_multiapi_submodule.py                |   75 -
 .../Multiapi/multiapi/__init__.py             |   20 -
 .../Multiapi/multiapi/_configuration.py       |   65 -
 .../multiapi/_multiapi_service_client.py      |  190 --
 .../Multiapi/multiapi/_operations_mixin.py    |  174 --
 .../Multiapi/multiapi/_patch.py               |   12 -
 .../Multiapi/multiapi/_serialization.py       | 2025 ----------------
 .../Multiapi/multiapi/_utils/__init__.py      |   10 -
 .../Multiapi/multiapi/_utils/serialization.py | 2025 ----------------
 .../Multiapi/multiapi/_version.py             |    8 -
 .../Multiapi/multiapi/aio/__init__.py         |   10 -
 .../Multiapi/multiapi/aio/_configuration.py   |   65 -
 .../multiapi/aio/_multiapi_service_client.py  |  190 --
 .../multiapi/aio/_operations_mixin.py         |  175 --
 .../Multiapi/multiapi/models.py               |    9 -
 .../Multiapi/multiapi/py.typed                |    1 -
 .../Multiapi/multiapi/v0/__init__.py          |   29 -
 .../Multiapi/multiapi/v0/_configuration.py    |   66 -
 .../Multiapi/multiapi/v0/_metadata.json       |  110 -
 .../multiapi/v0/_multiapi_service_client.py   |  122 -
 .../Multiapi/multiapi/v0/_patch.py            |   21 -
 .../Multiapi/multiapi/v0/_utils/__init__.py   |    6 -
 .../multiapi/v0/_utils/serialization.py       | 2032 -----------------
 .../Multiapi/multiapi/v0/aio/__init__.py      |   29 -
 .../multiapi/v0/aio/_configuration.py         |   66 -
 .../v0/aio/_multiapi_service_client.py        |  126 -
 .../Multiapi/multiapi/v0/aio/_patch.py        |   21 -
 .../multiapi/v0/aio/operations/__init__.py    |   25 -
 .../_operation_group_one_operations.py        |   97 -
 .../multiapi/v0/aio/operations/_patch.py      |   21 -
 .../Multiapi/multiapi/v0/models/__init__.py   |   31 -
 .../multiapi/v0/models/_models_py3.py         |   88 -
 .../Multiapi/multiapi/v0/models/_patch.py     |   20 -
 .../multiapi/v0/operations/__init__.py        |   25 -
 .../_operation_group_one_operations.py        |  118 -
 .../Multiapi/multiapi/v0/operations/_patch.py |   21 -
 .../Multiapi/multiapi/v0/py.typed             |    1 -
 .../Multiapi/multiapi/v1/__init__.py          |   29 -
 .../Multiapi/multiapi/v1/_configuration.py    |   66 -
 .../Multiapi/multiapi/v1/_metadata.json       |  196 --
 .../multiapi/v1/_multiapi_service_client.py   |  124 -
 .../Multiapi/multiapi/v1/_patch.py            |   21 -
 .../Multiapi/multiapi/v1/_utils/__init__.py   |    6 -
 .../multiapi/v1/_utils/serialization.py       | 2032 -----------------
 .../Multiapi/multiapi/v1/_utils/utils.py      |   25 -
 .../Multiapi/multiapi/v1/aio/__init__.py      |   29 -
 .../multiapi/v1/aio/_configuration.py         |   66 -
 .../v1/aio/_multiapi_service_client.py        |  128 --
 .../Multiapi/multiapi/v1/aio/_patch.py        |   21 -
 .../multiapi/v1/aio/operations/__init__.py    |   27 -
 .../_multiapi_service_client_operations.py    |  497 ----
 .../_operation_group_one_operations.py        |   97 -
 .../multiapi/v1/aio/operations/_patch.py      |   21 -
 .../Multiapi/multiapi/v1/models/__init__.py   |   33 -
 .../multiapi/v1/models/_models_py3.py         |  116 -
 .../Multiapi/multiapi/v1/models/_patch.py     |   20 -
 .../multiapi/v1/operations/__init__.py        |   27 -
 .../_multiapi_service_client_operations.py    |  575 -----
 .../_operation_group_one_operations.py        |  118 -
 .../Multiapi/multiapi/v1/operations/_patch.py |   21 -
 .../Multiapi/multiapi/v1/py.typed             |    1 -
 .../Multiapi/multiapi/v2/__init__.py          |   29 -
 .../Multiapi/multiapi/v2/_configuration.py    |   66 -
 .../Multiapi/multiapi/v2/_metadata.json       |  145 --
 .../multiapi/v2/_multiapi_service_client.py   |  127 --
 .../Multiapi/multiapi/v2/_patch.py            |   21 -
 .../Multiapi/multiapi/v2/_utils/__init__.py   |    6 -
 .../multiapi/v2/_utils/serialization.py       | 2032 -----------------
 .../Multiapi/multiapi/v2/_utils/utils.py      |   25 -
 .../Multiapi/multiapi/v2/aio/__init__.py      |   29 -
 .../multiapi/v2/aio/_configuration.py         |   66 -
 .../v2/aio/_multiapi_service_client.py        |  131 --
 .../Multiapi/multiapi/v2/aio/_patch.py        |   21 -
 .../multiapi/v2/aio/operations/__init__.py    |   29 -
 .../_multiapi_service_client_operations.py    |  153 --
 .../_operation_group_one_operations.py        |  199 --
 .../_operation_group_two_operations.py        |  100 -
 .../multiapi/v2/aio/operations/_patch.py      |   21 -
 .../Multiapi/multiapi/v2/models/__init__.py   |   29 -
 .../multiapi/v2/models/_models_py3.py         |   71 -
 .../Multiapi/multiapi/v2/models/_patch.py     |   20 -
 .../multiapi/v2/operations/__init__.py        |   29 -
 .../_multiapi_service_client_operations.py    |  201 --
 .../_operation_group_one_operations.py        |  242 --
 .../_operation_group_two_operations.py        |  122 -
 .../Multiapi/multiapi/v2/operations/_patch.py |   21 -
 .../Multiapi/multiapi/v2/py.typed             |    1 -
 .../Multiapi/multiapi/v3/__init__.py          |   29 -
 .../Multiapi/multiapi/v3/_configuration.py    |   66 -
 .../Multiapi/multiapi/v3/_metadata.json       |  145 --
 .../multiapi/v3/_multiapi_service_client.py   |  127 --
 .../Multiapi/multiapi/v3/_patch.py            |   21 -
 .../Multiapi/multiapi/v3/_utils/__init__.py   |    6 -
 .../multiapi/v3/_utils/serialization.py       | 2032 -----------------
 .../Multiapi/multiapi/v3/_utils/utils.py      |   25 -
 .../Multiapi/multiapi/v3/aio/__init__.py      |   29 -
 .../multiapi/v3/aio/_configuration.py         |   66 -
 .../v3/aio/_multiapi_service_client.py        |  131 --
 .../Multiapi/multiapi/v3/aio/_patch.py        |   21 -
 .../multiapi/v3/aio/operations/__init__.py    |   29 -
 .../_multiapi_service_client_operations.py    |  181 --
 .../_operation_group_one_operations.py        |  236 --
 .../_operation_group_two_operations.py        |  194 --
 .../multiapi/v3/aio/operations/_patch.py      |   21 -
 .../Multiapi/multiapi/v3/models/__init__.py   |   38 -
 .../multiapi/v3/models/_models_py3.py         |  112 -
 .../models/_multiapi_service_client_enums.py  |   23 -
 .../Multiapi/multiapi/v3/models/_patch.py     |   20 -
 .../multiapi/v3/operations/__init__.py        |   29 -
 .../_multiapi_service_client_operations.py    |  223 --
 .../_operation_group_one_operations.py        |  270 ---
 .../_operation_group_two_operations.py        |  239 --
 .../Multiapi/multiapi/v3/operations/_patch.py |   21 -
 .../Multiapi/multiapi/v3/py.typed             |    1 -
 .../AcceptanceTests/Multiapi/setup.py         |   42 -
 .../__init__.py                               |   20 -
 .../_configuration.py                         |   60 -
 .../_multiapi_service_client.py               |  168 --
 .../_operations_mixin.py                      |  175 --
 .../_serialization.py                         | 2025 ----------------
 .../_utils/__init__.py                        |   10 -
 .../_utils/serialization.py                   | 2025 ----------------
 .../_version.py                               |    8 -
 .../aio/__init__.py                           |   10 -
 .../aio/_configuration.py                     |   60 -
 .../aio/_multiapi_service_client.py           |  168 --
 .../aio/_operations_mixin.py                  |  177 --
 .../multiapicredentialdefaultpolicy/models.py |    9 -
 .../multiapicredentialdefaultpolicy/py.typed  |    1 -
 .../v1/__init__.py                            |   29 -
 .../v1/_configuration.py                      |   63 -
 .../v1/_metadata.json                         |  183 --
 .../v1/_multiapi_service_client.py            |  103 -
 .../v1/_patch.py                              |   21 -
 .../v1/_utils/__init__.py                     |    6 -
 .../v1/_utils/serialization.py                | 2032 -----------------
 .../v1/_utils/utils.py                        |   25 -
 .../v1/aio/__init__.py                        |   29 -
 .../v1/aio/_configuration.py                  |   63 -
 .../v1/aio/_multiapi_service_client.py        |  105 -
 .../v1/aio/_patch.py                          |   21 -
 .../v1/aio/operations/__init__.py             |   27 -
 .../_multiapi_service_client_operations.py    |  498 ----
 .../_operation_group_one_operations.py        |   97 -
 .../v1/aio/operations/_patch.py               |   21 -
 .../v1/models/__init__.py                     |   33 -
 .../v1/models/_models_py3.py                  |  116 -
 .../v1/models/_patch.py                       |   20 -
 .../v1/operations/__init__.py                 |   27 -
 .../_multiapi_service_client_operations.py    |  576 -----
 .../_operation_group_one_operations.py        |  118 -
 .../v1/operations/_patch.py                   |   21 -
 .../v1/py.typed                               |    1 -
 .../v2/__init__.py                            |   29 -
 .../v2/_configuration.py                      |   63 -
 .../v2/_metadata.json                         |  132 --
 .../v2/_multiapi_service_client.py            |  107 -
 .../v2/_patch.py                              |   21 -
 .../v2/_utils/__init__.py                     |    6 -
 .../v2/_utils/serialization.py                | 2032 -----------------
 .../v2/_utils/utils.py                        |   25 -
 .../v2/aio/__init__.py                        |   29 -
 .../v2/aio/_configuration.py                  |   63 -
 .../v2/aio/_multiapi_service_client.py        |  109 -
 .../v2/aio/_patch.py                          |   21 -
 .../v2/aio/operations/__init__.py             |   29 -
 .../_multiapi_service_client_operations.py    |  153 --
 .../_operation_group_one_operations.py        |  199 --
 .../_operation_group_two_operations.py        |  100 -
 .../v2/aio/operations/_patch.py               |   21 -
 .../v2/models/__init__.py                     |   29 -
 .../v2/models/_models_py3.py                  |   71 -
 .../v2/models/_patch.py                       |   20 -
 .../v2/operations/__init__.py                 |   29 -
 .../_multiapi_service_client_operations.py    |  201 --
 .../_operation_group_one_operations.py        |  242 --
 .../_operation_group_two_operations.py        |  122 -
 .../v2/operations/_patch.py                   |   21 -
 .../v2/py.typed                               |    1 -
 .../v3/__init__.py                            |   29 -
 .../v3/_configuration.py                      |   63 -
 .../v3/_metadata.json                         |  132 --
 .../v3/_multiapi_service_client.py            |  107 -
 .../v3/_patch.py                              |   21 -
 .../v3/_utils/__init__.py                     |    6 -
 .../v3/_utils/serialization.py                | 2032 -----------------
 .../v3/_utils/utils.py                        |   25 -
 .../v3/aio/__init__.py                        |   29 -
 .../v3/aio/_configuration.py                  |   63 -
 .../v3/aio/_multiapi_service_client.py        |  109 -
 .../v3/aio/_patch.py                          |   21 -
 .../v3/aio/operations/__init__.py             |   29 -
 .../_multiapi_service_client_operations.py    |  182 --
 .../_operation_group_one_operations.py        |  237 --
 .../_operation_group_two_operations.py        |  194 --
 .../v3/aio/operations/_patch.py               |   21 -
 .../v3/models/__init__.py                     |   38 -
 .../v3/models/_models_py3.py                  |  112 -
 .../models/_multiapi_service_client_enums.py  |   23 -
 .../v3/models/_patch.py                       |   20 -
 .../v3/operations/__init__.py                 |   29 -
 .../_multiapi_service_client_operations.py    |  223 --
 .../_operation_group_one_operations.py        |  270 ---
 .../_operation_group_two_operations.py        |  239 --
 .../v3/operations/_patch.py                   |   21 -
 .../v3/py.typed                               |    1 -
 .../MultiapiCredentialDefaultPolicy/setup.py  |   42 -
 .../multiapicustombaseurl/__init__.py         |   20 -
 .../multiapicustombaseurl/_configuration.py   |   67 -
 ...multiapi_custom_base_url_service_client.py |  130 --
 .../_operations_mixin.py                      |   47 -
 .../multiapicustombaseurl/_serialization.py   | 2025 ----------------
 .../multiapicustombaseurl/_utils/__init__.py  |   10 -
 .../_utils/serialization.py                   | 2025 ----------------
 .../multiapicustombaseurl/_version.py         |    8 -
 .../multiapicustombaseurl/aio/__init__.py     |   10 -
 .../aio/_configuration.py                     |   67 -
 ...multiapi_custom_base_url_service_client.py |  130 --
 .../aio/_operations_mixin.py                  |   47 -
 .../multiapicustombaseurl/models.py           |    7 -
 .../multiapicustombaseurl/py.typed            |    1 -
 .../multiapicustombaseurl/v1/__init__.py      |   29 -
 .../v1/_configuration.py                      |   65 -
 .../multiapicustombaseurl/v1/_metadata.json   |  116 -
 ...multiapi_custom_base_url_service_client.py |  102 -
 .../multiapicustombaseurl/v1/_patch.py        |   21 -
 .../v1/_utils/__init__.py                     |    6 -
 .../v1/_utils/serialization.py                | 2032 -----------------
 .../multiapicustombaseurl/v1/_utils/utils.py  |   25 -
 .../multiapicustombaseurl/v1/aio/__init__.py  |   29 -
 .../v1/aio/_configuration.py                  |   65 -
 ...multiapi_custom_base_url_service_client.py |  104 -
 .../multiapicustombaseurl/v1/aio/_patch.py    |   21 -
 .../v1/aio/operations/__init__.py             |   26 -
 ...stom_base_url_service_client_operations.py |   93 -
 .../v1/aio/operations/_patch.py               |   21 -
 .../v1/models/__init__.py                     |   27 -
 .../v1/models/_models_py3.py                  |   37 -
 .../multiapicustombaseurl/v1/models/_patch.py |   20 -
 .../v1/operations/__init__.py                 |   26 -
 ...stom_base_url_service_client_operations.py |  115 -
 .../v1/operations/_patch.py                   |   21 -
 .../multiapicustombaseurl/v1/py.typed         |    1 -
 .../multiapicustombaseurl/v2/__init__.py      |   29 -
 .../v2/_configuration.py                      |   65 -
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 .../multiapidataplane/_serialization.py       | 2025 ----------------
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 .../_multiapi_service_client_operations.py    |  574 -----
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 .../v2/_utils/serialization.py                | 2032 -----------------
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 .../multiapidataplane/v2/aio/__init__.py      |   29 -
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 .../v3/_utils/serialization.py                | 2032 -----------------
 .../multiapidataplane/v3/_utils/utils.py      |   25 -
 .../multiapidataplane/v3/aio/__init__.py      |   29 -
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 .../_multiapi_service_client_operations.py    |  180 --
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 .../models/_multiapi_service_client_enums.py  |   23 -
 .../multiapidataplane/v3/models/_patch.py     |   20 -
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 .../multiapikeywordonly/_serialization.py     | 2025 ----------------
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 .../multiapikeywordonly/_version.py           |    8 -
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 .../v1/_utils/serialization.py                | 2032 -----------------
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 .../multiapikeywordonly/v1/aio/_patch.py      |   21 -
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 .../multiapikeywordonly/v1/models/_patch.py   |   20 -
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 .../_multiapi_service_client_operations.py    |  576 -----
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 .../v2/_utils/serialization.py                | 2032 -----------------
 .../multiapikeywordonly/v2/_utils/utils.py    |   25 -
 .../multiapikeywordonly/v2/aio/__init__.py    |   29 -
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 .../v2/models/_models_py3.py                  |   71 -
 .../multiapikeywordonly/v2/models/_patch.py   |   20 -
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 .../v3/_multiapi_service_client.py            |  105 -
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 .../multiapikeywordonly/v3/_utils/__init__.py |    6 -
 .../v3/_utils/serialization.py                | 2032 -----------------
 .../multiapikeywordonly/v3/_utils/utils.py    |   25 -
 .../multiapikeywordonly/v3/aio/__init__.py    |   29 -
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 .../_multiapi_service_client_operations.py    |  181 --
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 .../models/_multiapi_service_client_enums.py  |   23 -
 .../multiapikeywordonly/v3/models/_patch.py   |   20 -
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 .../multiapinoasync/__init__.py               |   20 -
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 .../multiapinoasync/_serialization.py         | 2025 ----------------
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 .../multiapinoasync/_version.py               |    8 -
 .../MultiapiNoAsync/multiapinoasync/models.py |    9 -
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 .../multiapinoasync/v1/_utils/utils.py        |   25 -
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 .../_multiapi_service_client_operations.py    |  575 -----
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 .../multiapinoasync/v2/_utils/utils.py        |   25 -
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 .../multiapinoasync/v2/models/_models_py3.py  |   71 -
 .../multiapinoasync/v2/models/_patch.py       |   20 -
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 .../multiapinoasync/v2/operations/_patch.py   |   21 -
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 .../v3/_utils/serialization.py                | 2032 -----------------
 .../multiapinoasync/v3/_utils/utils.py        |   25 -
 .../multiapinoasync/v3/models/__init__.py     |   38 -
 .../multiapinoasync/v3/models/_models_py3.py  |  112 -
 .../models/_multiapi_service_client_enums.py  |   23 -
 .../multiapinoasync/v3/models/_patch.py       |   20 -
 .../multiapinoasync/v3/operations/__init__.py |   29 -
 .../_multiapi_service_client_operations.py    |  223 --
 .../_operation_group_one_operations.py        |  270 ---
 .../_operation_group_two_operations.py        |  239 --
 .../multiapinoasync/v3/operations/_patch.py   |   21 -
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 .../AcceptanceTests/MultiapiNoAsync/setup.py  |   42 -
 .../multiapisecurity/__init__.py              |   20 -
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 .../multiapisecurity/_operations_mixin.py     |  138 --
 .../multiapisecurity/_serialization.py        | 2025 ----------------
 .../multiapisecurity/_version.py              |    8 -
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 .../multiapisecurity/aio/_configuration.py    |   59 -
 .../aio/_multiapi_service_client.py           |  142 --
 .../multiapisecurity/aio/_operations_mixin.py |  139 --
 .../multiapisecurity/models.py                |    7 -
 .../multiapisecurity/py.typed                 |    1 -
 .../multiapisecurity/v0/__init__.py           |   29 -
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 .../multiapisecurity/v0/_metadata.json        |   97 -
 .../v0/_multiapi_service_client.py            |  100 -
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 .../multiapisecurity/v0/_utils/__init__.py    |    6 -
 .../v0/_utils/serialization.py                | 2032 -----------------
 .../multiapisecurity/v0/aio/__init__.py       |   29 -
 .../multiapisecurity/v0/aio/_configuration.py |   58 -
 .../v0/aio/_multiapi_service_client.py        |  104 -
 .../multiapisecurity/v0/aio/_patch.py         |   21 -
 .../v0/aio/operations/__init__.py             |   25 -
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 .../multiapisecurity/v0/models/_models_py3.py |   88 -
 .../multiapisecurity/v0/models/_patch.py      |   20 -
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 .../_operation_group_one_operations.py        |  117 -
 .../multiapisecurity/v0/operations/_patch.py  |   21 -
 .../multiapisecurity/v0/py.typed              |    1 -
 .../multiapisecurity/v1/__init__.py           |   29 -
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 .../multiapisecurity/v1/_metadata.json        |  183 --
 .../v1/_multiapi_service_client.py            |  102 -
 .../multiapisecurity/v1/_patch.py             |   21 -
 .../multiapisecurity/v1/_utils/__init__.py    |    6 -
 .../v1/_utils/serialization.py                | 2032 -----------------
 .../multiapisecurity/v1/_utils/utils.py       |   25 -
 .../multiapisecurity/v1/aio/__init__.py       |   29 -
 .../multiapisecurity/v1/aio/_configuration.py |   58 -
 .../v1/aio/_multiapi_service_client.py        |  106 -
 .../multiapisecurity/v1/aio/_patch.py         |   21 -
 .../v1/aio/operations/__init__.py             |   27 -
 .../_multiapi_service_client_operations.py    |  496 ----
 .../_operation_group_one_operations.py        |   96 -
 .../v1/aio/operations/_patch.py               |   21 -
 .../multiapisecurity/v1/models/__init__.py    |   33 -
 .../multiapisecurity/v1/models/_models_py3.py |  116 -
 .../multiapisecurity/v1/models/_patch.py      |   20 -
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 .../_multiapi_service_client_operations.py    |  574 -----
 .../_operation_group_one_operations.py        |  117 -
 .../multiapisecurity/v1/operations/_patch.py  |   21 -
 .../multiapisecurity/v1/py.typed              |    1 -
 .../AcceptanceTests/MultiapiSecurity/setup.py |   42 -
 .../multiapiwithsubmodule/__init__.py         |    1 -
 .../submodule/__init__.py                     |   20 -
 .../submodule/_configuration.py               |   65 -
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 .../submodule/_serialization.py               | 2025 ----------------
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 .../submodule/_version.py                     |    8 -
 .../submodule/aio/__init__.py                 |   10 -
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 .../submodule/aio/_multiapi_service_client.py |  183 --
 .../submodule/aio/_operations_mixin.py        |  177 --
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 .../submodule/v1/_metadata.json               |  196 --
 .../submodule/v1/_multiapi_service_client.py  |  125 -
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 .../submodule/v1/_utils/serialization.py      | 2032 -----------------
 .../submodule/v1/_utils/utils.py              |   25 -
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 .../submodule/v1/aio/_configuration.py        |   66 -
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 .../submodule/v1/aio/_patch.py                |   21 -
 .../submodule/v1/aio/operations/__init__.py   |   27 -
 .../_multiapi_service_client_operations.py    |  498 ----
 .../_operation_group_one_operations.py        |   97 -
 .../submodule/v1/aio/operations/_patch.py     |   21 -
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 .../submodule/v1/models/_models_py3.py        |  116 -
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 .../submodule/v1/operations/__init__.py       |   27 -
 .../_multiapi_service_client_operations.py    |  576 -----
 .../_operation_group_one_operations.py        |  118 -
 .../submodule/v1/operations/_patch.py         |   21 -
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 .../submodule/v2/_metadata.json               |  145 --
 .../submodule/v2/_multiapi_service_client.py  |  129 --
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 .../submodule/v2/_utils/serialization.py      | 2032 -----------------
 .../submodule/v2/_utils/utils.py              |   25 -
 .../submodule/v2/aio/__init__.py              |   29 -
 .../submodule/v2/aio/_configuration.py        |   66 -
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 .../submodule/v2/aio/_patch.py                |   21 -
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 .../_multiapi_service_client_operations.py    |  153 --
 .../_operation_group_one_operations.py        |  199 --
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 .../submodule/v2/aio/operations/_patch.py     |   21 -
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 .../submodule/v2/models/_models_py3.py        |   71 -
 .../submodule/v2/models/_patch.py             |   20 -
 .../submodule/v2/operations/__init__.py       |   29 -
 .../_multiapi_service_client_operations.py    |  201 --
 .../_operation_group_one_operations.py        |  242 --
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 .../submodule/v2/operations/_patch.py         |   21 -
 .../submodule/v2/py.typed                     |    1 -
 .../submodule/v3/__init__.py                  |   29 -
 .../submodule/v3/_configuration.py            |   66 -
 .../submodule/v3/_metadata.json               |  145 --
 .../submodule/v3/_multiapi_service_client.py  |  129 --
 .../submodule/v3/_patch.py                    |   21 -
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 .../submodule/v3/_utils/serialization.py      | 2032 -----------------
 .../submodule/v3/_utils/utils.py              |   25 -
 .../submodule/v3/aio/__init__.py              |   29 -
 .../submodule/v3/aio/_configuration.py        |   66 -
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diff --git a/cspell.yaml b/cspell.yaml
index e229785798b..a0230c485f4 100644
--- a/cspell.yaml
+++ b/cspell.yaml
@@ -69,10 +69,6 @@ words:
   - mros
   - mspaint
   - msrc
-  - multiapi
-  - multiapiclient
-  - multiapinoasync
-  - multiapisecurity
   - mutli
   - myenv
   - myoption
diff --git a/docs/client/initializing.md b/docs/client/initializing.md
index 8c825cca4ff..008202e5bf4 100644
--- a/docs/client/initializing.md
+++ b/docs/client/initializing.md
@@ -68,25 +68,8 @@ client. Say your custom credential is called `MyCredential`, and the policy that
 client would look something like `client = PetsClient(credential=MyCredential(), authentication_policy=MyAuthenticationPolicy())`, though this of course varies
 based on inputs.
 
-## Multi API Client
-
-Initializing your Multi API client is very similar to initializing a normal client. The only difference is there's an added optional
-parameter `api_version`. With this parameter, you can specify the API version you want your client to have. If not specified, the multi
-API client uses the default API version.
-
-Using the Multi API client we generated in our [multi API generation][multiapi_generation], our example client uses default API version
-`v2`. If we would like our client at runtime to have API version `v1`, we would initialize our client like:
-
-```python
-from azure.identity import DefaultAzureCredential
-from azure.pets import PetsClient
-
-client = PetsClient(credential=DefaultAzureCredential(), api_version="v1")
-```
-
 <!-- LINKS -->
 
-[multiapi_generation]: https://github.com/Azure/autorest.python/blob/main/docs/generate/multiapi.md
 [azure_core_library]: https://pypi.org/project/azure-core/
 [msrest_library]: https://pypi.org/project/msrest/
 [azure_mgmt_core_library]: https://pypi.org/project/azure-mgmt-core/
diff --git a/docs/client/models.md b/docs/client/models.md
index fae9d6a0187..758c79e27f0 100644
--- a/docs/client/models.md
+++ b/docs/client/models.md
@@ -16,24 +16,3 @@ from azure.pets.models import DogTypes
 
 my_dog_type = DogTypes.DALMATIAN
 ```
-
-## Multi API
-
-There is also a `models` module in a multi API client. There, you can access the latest version of each models.
-
-If you want to access a specific API version's models, you can do so through the [`models()`][models_ex] class method we expose on the multi API client.
-It accepts optional parameter `api_version`. If specified, it will retrieve the models from that API version. Otherwise, retrieves models from the
-default API version the code was generated with. We've included a code snippet showing you how to access models in both situations.
-
-```python
-from azure.multiapi.sample import MultiapiServiceClient
-from azure.identity import DefaultAzureCredential
-
-client = MultiapiServiceClient(credential=DefaultAzureCredential())
-
-default_api_version_models = client.models()
-v3_models = client.models(api_version='3.0.0')
-```
-
-<!-- LINKS -->
-[models_ex]: https://github.com/Azure/autorest.python/blob/main/docs/packages/autorest.python/specification/multiapi/generated/azure/multiapi/sample/_multiapi_service_client.py#L91
diff --git a/docs/generate/multiapi.md b/docs/generate/multiapi.md
deleted file mode 100644
index 1e14c5198cc..00000000000
--- a/docs/generate/multiapi.md
+++ /dev/null
@@ -1,76 +0,0 @@
-# <img align="center" src="../images/logo.png">  Generating a Multi API Python Client with AutoRest
-
-If you want to generate one client that handles multiple API versions (a common use-case for this is supporting multiple Azure clouds, since a service's API versions can differ between them), this is the section for you. Python is the only language that supports this, hence why these docs are in the Python-specific section.
-
-Before getting into the multiapi specific sections that need to be added to your readme, you need to make sure you have a tag set up for every single API version you want to generate. See the ["Adding Tags When Generating"][tags] docs to find out how to set this up. In this example we will generate 3 different API versions: `v1`, `v2`, and `v3`.
-
-The flag you use on the command line to specify you want multiapi code generation is `--multiapi`. Thus, we need to add a `multiapi` specific section to our readme.
-Let's add it underneath `General Settings` to keep it to the top of our readme
-
-````
-### Multi API generation
-
-These settings apply only when `--multiapi` is specified on the command line.
-```yaml $(multiapi)
-```
-````
-
-With `multiapi`, we want to batch execute each of our API versions:
-
-````
-### Multi API generation
-
-These settings apply only when `--multiapi` is specified on the command line.
-```yaml $(multiapi)
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-````
-
-With this code, AutoRest will first generate the files listed under the `v1` tag, then the files listed under the `v2` tag.
-After generating these though, AutoRest needs to generate the multiapi client on top of these files. This layer will wire users
-to the correct API version based on which API version the user wants. To add this layer, you need to include a `multiapiscript` section
-of your config. Users should never specify `multiapiscript` on the command line, but it is a required flag in a configuration
-file to let AutoRest know it has to run its multiapi script.
-
-````
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/generated/azure/multiapi/sample
-clear-output-folder: false
-perform-load: false
-```
-````
-
-> Note: `perform-load` is an internal configuration field used by AutoRest to decide whether it should try to load an input file. Since we're not actively generating
-> from an inputted swagger field in the `multiapiscript` step, we include this in our yaml code block.
-
-Now, if you have `clear-output-folder` specified in your general settings, you would also have to include `clear-output-folder: false` inside
-your `multiapiscript` block. This is because `clear-output-folder` clears your output folder before each generation, which is not what we want
-if we want to batch generate multiple API versions, then generate a multiAPI client over that.
-
-A final note about optional flags in this section: If you don't specify a default API version, the generated client will use the latest GA service version as the default API version for users, which in our case is `v2`. Meaning, if a user does not pass in an `api_version` value to the generated multi API client, that client will use the default API version `v2`. Thus, if you want another API version, say `v1` to be the default API for users, you would include `default-api: v1` in this `multiapiscript` section.
-
-Finally, we have to actually call the `multiapiscript` section, so we add it to our batch execution:
-
-````
-### Multi API generation
-
-These settings apply only when `--multiapi` is specified on the command line.
-
-```yaml $(multiapi)
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-````
-
-And that's it! We've included the final config file in our [samples folder][samples], please feel free to refer to this.
-
-<!-- LINKS -->
-[tags]: https://github.com/Azure/autorest/tree/master/docs/generate/readme.md#adding-tags-when-generating
-[samples]: https://github.com/Azure/autorest.python/blob/main/packages/autorest.python/samples/specification/multiapi/readme.md
diff --git a/docs/generate/readme.md b/docs/generate/readme.md
index 918a38246c9..440f71eeb9b 100644
--- a/docs/generate/readme.md
+++ b/docs/generate/readme.md
@@ -2,10 +2,8 @@
 
 Most of the information you'll need to generate a Python client can be found in the general docs [here][general]. In these docs, we go over a couple Python-specific scenarios.
 
-* [Generating Multi API code][multiapi]
 * [Generating with Directives][directives]
 
 <!-- LINKS -->
 [general]: https://github.com/Azure/autorest/tree/master/docs/generate/readme.md
-[multiapi]: https://github.com/Azure/autorest.python/blob/main/docs/generate/multiapi.md
 [directives]: https://github.com/Azure/autorest.python/blob/main/docs/generate/directives.md
\ No newline at end of file
diff --git a/eng/pipelines/ci.yml b/eng/pipelines/ci.yml
index fbdae75685f..558c78a4743 100644
--- a/eng/pipelines/ci.yml
+++ b/eng/pipelines/ci.yml
@@ -112,14 +112,6 @@ jobs:
       - template: generated-code-checks-template.yml
         parameters:
             folderName: "dpg/version-tolerant"
-      - script: tox run -e ci
-        displayName: 'Execute "multiapi" Tests - Python $(PythonVersion)'
-        workingDirectory: $(Build.SourcesDirectory)/autorest.python/packages/autorest.python/test/multiapi
-
-      - script: tox run -e apiview
-        displayName: 'Validate multiapi APIView - Python $(PythonVersion)'
-        condition: and(succeededOrFailed(), eq(variables['PythonVersion'], '3.11'))
-        workingDirectory: $(Build.SourcesDirectory)/autorest.python/packages/autorest.python/test/multiapi
 
       - ${{ if eq(ne(variables['Build.Reason'], 'PullRequest'), 'True') }}:
           - script: |
diff --git a/eng/scripts/util.py b/eng/scripts/util.py
index 0df185ab76e..9f56b3470f9 100644
--- a/eng/scripts/util.py
+++ b/eng/scripts/util.py
@@ -34,7 +34,7 @@ def run_check(name, call_back, log_info):
         "-t",
         "--test-folder",
         dest="test_folder",
-        help="The test folder we're in. Can be 'azure', 'multiapi', or 'vanilla'",
+        help="The test folder we're in. Can be 'azure' or 'vanilla'",
         required=True,
     )
     parser.add_argument(
diff --git a/packages/autorest.python/README.md b/packages/autorest.python/README.md
index 40c0e81ce1b..dd51967ea15 100644
--- a/packages/autorest.python/README.md
+++ b/packages/autorest.python/README.md
@@ -23,7 +23,7 @@ contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additio
 
 #### Python code gen
 
-```yaml !$(multiapiscript) && !$(multiclientscript)
+```yaml !$(multiclientscript)
 # default values for version tolerant and black
 black: true
 ```
@@ -39,7 +39,7 @@ modelerfour:
   flatten-payloads: true
 ```
 
-```yaml !$(multiapiscript) && !$(multiclientscript)
+```yaml !$(multiclientscript)
 pass-thru:
   - model-deduplicator
   - subset-reducer
@@ -99,25 +99,6 @@ scope-codegen/emitter:
 output-artifact: python-files
 ```
 
-# Multiapi script pipeline
-
-```yaml $(multiapiscript)
-pipeline:
-  python/multiapiscript:
-    scope: multiapiscript
-    output-artifact: python-files
-
-  python/multiapiscript/emitter:
-    input: multiapiscript
-    scope: scope-multiapiscript/emitter
-
-scope-multiapiscript/emitter:
-  input-artifact: python-files
-  output-uri-expr: $key
-
-output-artifact: python-files
-```
-
 # Black script pipeline
 
 ```yaml $(black)
@@ -173,12 +154,6 @@ help-content:
       - key: basic-setup-py
         description: Whether to generate a build script for setuptools to package your SDK.  Defaults to `false`, generally not suggested if you are going to wrap the generated code
         type: bool
-      - key: multiapi
-        description: Whether to generate a multiapi client.
-        type: bool
-      - key: default-api
-        description: In the case of `--multiapi`, you can override the default service API version with this flag. If not specified, we use the latest GA service version as the default API.
-        type: string
       - key: no-namespace-folders
         description: Specify if you don't want pkgutil-style namespace folders. Defaults to `false`.
         type: bool
diff --git a/packages/autorest.python/autorest/codegen.py b/packages/autorest.python/autorest/codegen.py
index 13dad505c97..44491bda99d 100644
--- a/packages/autorest.python/autorest/codegen.py
+++ b/packages/autorest.python/autorest/codegen.py
@@ -69,7 +69,6 @@ def get_options(self) -> Dict[str, Any]:
             "package-version": self._autorestapi.get_value("package-version"),
             "client-side-validation": self._autorestapi.get_boolean_value("client-side-validation"),
             "tracing": self._autorestapi.get_boolean_value("trace"),
-            "multiapi": self._autorestapi.get_boolean_value("multiapi", False),
             "polymorphic-examples": self._autorestapi.get_value("polymorphic-examples"),
             "models-mode": self._autorestapi.get_value("models-mode"),
             "builders-visibility": self._autorestapi.get_value("builders-visibility"),
diff --git a/packages/autorest.python/autorest/jsonrpc/server.py b/packages/autorest.python/autorest/jsonrpc/server.py
index f45883d1bfc..1f4b5e58f1d 100644
--- a/packages/autorest.python/autorest/jsonrpc/server.py
+++ b/packages/autorest.python/autorest/jsonrpc/server.py
@@ -26,7 +26,6 @@ def GetPluginNames():
         "preprocess",
         "m4reformatter",
         "black",
-        "multiapiscript",
         "multiclientscript",
     ]
 
@@ -53,8 +52,6 @@ def Process(plugin_name: str, session_id: str) -> bool:
             from ..codegen import CodeGeneratorAutorest as PluginToLoad  # type: ignore
         elif plugin_name == "black":
             from ..black import BlackScriptPluginAutorest as PluginToLoad  # type: ignore
-        elif plugin_name == "multiapiscript":
-            from ..multiapi import MultiApiScriptPluginAutorest as PluginToLoad  # type: ignore
         elif plugin_name == "multiclientscript":
             from ..multiclient import MultiClientPluginAutorest as PluginToLoad  # type: ignore
         else:
diff --git a/packages/autorest.python/autorest/multiapi/__init__.py b/packages/autorest.python/autorest/multiapi/__init__.py
deleted file mode 100644
index c1df35c21cf..00000000000
--- a/packages/autorest.python/autorest/multiapi/__init__.py
+++ /dev/null
@@ -1,185 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-import sys
-import logging
-import json
-
-from collections import defaultdict
-from pathlib import Path
-from typing import Dict, List, Optional, cast, Any
-from pygen import Plugin, ReaderAndWriter
-
-from .serializers import MultiAPISerializer, MultiAPISerializerAutorest
-from .models import CodeModel
-from .utils import _get_default_api_version_from_list
-
-from .. import PluginAutorest, ReaderAndWriterAutorest
-
-_LOGGER = logging.getLogger(__name__)
-
-
-class MultiApiScriptPlugin(Plugin):  # pylint: disable=abstract-method
-    def process(self) -> bool:
-        return self.generator.process()
-
-    @property
-    def generator(self) -> "MultiAPI":
-        return MultiAPI(
-            input_package_name=self.options.get("package-name"),
-            output_folder=self.options["output-folder"],
-            user_specified_default_api=self.options.get("default-api"),
-            no_async=self.options.get("no-async", False),
-        )
-
-
-class MultiApiScriptPluginAutorest(MultiApiScriptPlugin, PluginAutorest):
-    @property
-    def generator(self) -> "MultiAPI":
-        return MultiAPIAutorest(
-            autorestapi=self._autorestapi,
-            input_package_name=self.options.get("package-name"),
-            output_folder=self.output_folder,
-            user_specified_default_api=self.options.get("default-api"),
-            no_async=self.options.get("no-async", False),
-        )
-
-    def get_options(self) -> Dict[str, Any]:
-        options = {
-            "package-name": self._autorestapi.get_value("package-name"),
-            "default-api": self._autorestapi.get_value("default-api"),
-            "no-async": self._autorestapi.get_value("no-async"),
-        }
-        return {k: v for k, v in options.items() if v is not None}
-
-
-class MultiAPI(ReaderAndWriter):  # pylint: disable=abstract-method
-    def __init__(
-        self,
-        *,
-        input_package_name: Optional[str] = None,
-        output_folder: str,
-        no_async: Optional[bool] = False,
-        user_specified_default_api: Optional[str] = None,
-        **kwargs: Any,
-    ) -> None:
-        super().__init__(output_folder=Path(output_folder).resolve(), **kwargs)
-        if input_package_name is None:
-            raise ValueError("package-name is required, either provide it as args or check your readme configuration")
-        self.input_package_name = input_package_name
-        _LOGGER.debug("Received package name %s", input_package_name)
-        _LOGGER.debug("Received output-folder %s", output_folder)
-        self.output_package_name: str = ""
-        self.no_async = no_async
-        self.user_specified_default_api = user_specified_default_api
-
-    @property
-    def default_api_version(self) -> str:
-        return _get_default_api_version_from_list(
-            self.mod_to_api_version,
-            [p.name for p in self.paths_to_versions],
-            self.preview_mode,
-            self.user_specified_default_api,
-        )
-
-    @property
-    def default_version_metadata(self) -> Dict[str, Any]:
-        # get client name from default api version
-        path_to_default_version = Path()
-        for path_to_version in self.paths_to_versions:
-            if self.default_api_version.replace("-", "_") == path_to_version.stem:
-                path_to_default_version = path_to_version
-                break
-        return json.loads(self.read_file(path_to_default_version / "_metadata.json"))
-
-    @property
-    def module_name(self) -> str:
-        """From a syntax like package_name#submodule, build a package name
-        and complete module name.
-        """
-        split_package_name = self.input_package_name.split("#")
-        package_name = split_package_name[0]
-        module_name = package_name.replace("-", ".")
-        if len(split_package_name) >= 2:
-            module_name = ".".join([module_name, split_package_name[1]])
-            self.output_package_name = package_name
-        else:
-            self.output_package_name = self.input_package_name
-        return module_name
-
-    @property
-    def preview_mode(self) -> bool:
-        # If True, means the auto-profile will consider preview versions.
-        # If not, if it exists a stable API version for a global or RT, will always be used
-        return cast(
-            bool,
-            self.user_specified_default_api and "preview" in self.user_specified_default_api,
-        )
-
-    @property
-    def paths_to_versions(self) -> List[Path]:
-        paths_to_versions = []
-        directory = [x for x in self.output_folder.iterdir() if x.is_dir()]
-        directory.sort()
-        for child in directory:
-            child_dir = (self.output_folder / child).resolve()
-            if Path(child_dir / "_metadata.json") in child_dir.iterdir():
-                paths_to_versions.append(Path(child.stem))
-        return paths_to_versions
-
-    @property
-    def version_path_to_metadata(self) -> Dict[Path, Dict[str, Any]]:
-        return {
-            version_path: json.loads(self.read_file(version_path / "_metadata.json"))
-            for version_path in self.paths_to_versions
-        }
-
-    @property
-    def mod_to_api_version(self) -> Dict[str, str]:
-        mod_to_api_version: Dict[str, str] = defaultdict(str)
-        for version_path in self.paths_to_versions:
-            metadata_json = json.loads(self.read_file(version_path / "_metadata.json"))
-            version = metadata_json["chosen_version"]
-            total_api_version_list = metadata_json["total_api_version_list"]
-            if not version:
-                if total_api_version_list:
-                    sys.exit(f"Unable to match {total_api_version_list} to label {version_path.stem}")
-                else:
-                    sys.exit(f"Unable to extract api version of {version_path.stem}")
-            mod_to_api_version[version_path.name] = version
-        return mod_to_api_version
-
-    @property
-    def serializer(self) -> MultiAPISerializer:
-        return MultiAPISerializer()
-
-    def process(self) -> bool:
-        _LOGGER.info("Generating multiapi client")
-
-        code_model = CodeModel(
-            module_name=self.module_name,
-            package_name=self.output_package_name,
-            default_api_version=self.default_api_version,
-            preview_mode=self.preview_mode,
-            default_version_metadata=self.default_version_metadata,
-            mod_to_api_version=self.mod_to_api_version,
-            version_path_to_metadata=self.version_path_to_metadata,
-            user_specified_default_api=self.user_specified_default_api,
-        )
-
-        multiapi_serializer = self.serializer
-        multiapi_serializer.serialize(code_model, self.no_async)
-
-        _LOGGER.info("Done!")
-        return True
-
-
-class MultiAPIAutorest(MultiAPI, ReaderAndWriterAutorest):
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(**kwargs)
-
-    @property
-    def serializer(self) -> MultiAPISerializer:
-        return MultiAPISerializerAutorest(self._autorestapi, output_folder=self.output_folder)
diff --git a/packages/autorest.python/autorest/multiapi/models/__init__.py b/packages/autorest.python/autorest/multiapi/models/__init__.py
deleted file mode 100644
index 7ea303c2d43..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/__init__.py
+++ /dev/null
@@ -1,16 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .code_model import CodeModel
-from .imports import ImportType, FileImport, TypingSection
-from .global_parameter import GlobalParameter
-
-__all__ = [
-    "CodeModel",
-    "FileImport",
-    "ImportType",
-    "TypingSection",
-    "GlobalParameter",
-]
diff --git a/packages/autorest.python/autorest/multiapi/models/client.py b/packages/autorest.python/autorest/multiapi/models/client.py
deleted file mode 100644
index a956828468d..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/client.py
+++ /dev/null
@@ -1,68 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-import sys
-import json
-import re
-from typing import Any, Dict, List
-from pathlib import Path
-from .imports import FileImport, TypingSection, ImportType
-
-
-def _extract_version(metadata_json: Dict[str, Any], version_path: Path) -> str:
-    version = metadata_json["chosen_version"]
-    total_api_version_list = metadata_json["total_api_version_list"]
-    if not version:
-        if total_api_version_list:
-            sys.exit(f"Unable to match {total_api_version_list} to label {version_path.stem}")
-        else:
-            sys.exit(f"Unable to extract api version of {version_path.stem}")
-    return version
-
-
-class Client:
-    def __init__(
-        self,
-        azure_arm: bool,
-        default_version_metadata: Dict[str, Any],
-        version_path_to_metadata: Dict[Path, Dict[str, Any]],
-    ):
-        self.name = default_version_metadata["client"]["name"]
-        self.pipeline_client = "ARMPipelineClient" if azure_arm else "PipelineClient"
-        self.filename = default_version_metadata["client"]["filename"]
-        self.host_value = default_version_metadata["client"]["host_value"]
-        self.description = default_version_metadata["client"]["description"]
-        self.client_side_validation = default_version_metadata["client"]["client-side-validation"]
-        self.default_version_metadata = default_version_metadata
-        self.version_path_to_metadata = version_path_to_metadata
-
-    def imports(self, async_mode: bool) -> FileImport:
-        imports_to_load = "async_imports" if async_mode else "sync_imports"
-        file_import = FileImport(json.loads(self.default_version_metadata["client"][imports_to_load]))
-        local_imports = file_import.imports.get(TypingSection.REGULAR, {}).get(ImportType.LOCAL, {})
-        for key in local_imports:
-            if re.search("^\\.*_utils.serialization$", key):
-                relative_path = ".." if async_mode else "."
-                local_imports[f"{relative_path}_serialization"] = local_imports.pop(key)
-                break
-        return file_import
-
-    @property
-    def parameterized_host_template_to_api_version(self) -> Dict[str, List[str]]:
-        parameterized_host_template_to_api_version: Dict[str, List[str]] = {}
-        for version_path, metadata_json in self.version_path_to_metadata.items():
-            parameterized_host_template = metadata_json["client"]["parameterized_host_template"]
-            version = _extract_version(metadata_json, version_path)
-            parameterized_host_template_to_api_version.setdefault(parameterized_host_template, []).append(version)
-        return parameterized_host_template_to_api_version
-
-    @property
-    def has_public_lro_operations(self) -> bool:
-        has_public_lro_operations = False
-        for _, metadata_json in self.version_path_to_metadata.items():
-            current_client_has_public_lro_operations = metadata_json["client"]["has_public_lro_operations"]
-            if current_client_has_public_lro_operations:
-                has_public_lro_operations = True
-        return has_public_lro_operations
diff --git a/packages/autorest.python/autorest/multiapi/models/code_model.py b/packages/autorest.python/autorest/multiapi/models/code_model.py
deleted file mode 100644
index 6459f95459d..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/code_model.py
+++ /dev/null
@@ -1,142 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-from typing import Any, Dict, List, Optional
-from pathlib import Path
-from .client import Client
-from .config import Config
-from .operation_group import OperationGroup
-from .operation_mixin_group import OperationMixinGroup
-from .global_parameters import GlobalParameters
-from ..utils import _get_default_api_version_from_list
-
-
-class CodeModel:  # pylint: disable=too-many-instance-attributes
-    def __init__(
-        self,
-        module_name: str,
-        package_name: str,
-        default_api_version: str,
-        preview_mode: bool,
-        default_version_metadata: Dict[str, Any],
-        mod_to_api_version: Dict[str, str],
-        version_path_to_metadata: Dict[Path, Dict[str, Any]],
-        user_specified_default_api: Optional[str] = None,
-    ):
-        self.module_name = module_name
-        self.package_name = package_name
-        self.mod_to_api_version = mod_to_api_version
-        self.default_api_version = default_api_version
-        self.preview_mode = preview_mode
-        self.azure_arm = default_version_metadata["client"]["azure_arm"]
-        self.default_version_metadata = default_version_metadata
-        self.version_path_to_metadata = version_path_to_metadata
-        self.client = Client(self.azure_arm, default_version_metadata, version_path_to_metadata)
-        self.config = Config(default_version_metadata)
-        self.operation_mixin_group = OperationMixinGroup(version_path_to_metadata, default_api_version)
-        self.global_parameters = GlobalParameters(default_version_metadata["global_parameters"])
-        self.user_specified_default_api = user_specified_default_api
-        self.options: Dict[str, Any] = {"flavor": "azure", "company_name": "Microsoft"}
-        self.core_library = "azure.core"
-
-    @property
-    def operation_groups(self) -> List[OperationGroup]:
-        operation_groups: List[OperationGroup] = []
-        for version_path, metadata_json in self.version_path_to_metadata.items():
-            if not metadata_json.get("operation_groups"):
-                continue
-            operation_groups_metadata = metadata_json["operation_groups"]
-            for (
-                operation_group_name,
-                operation_group_class_name,
-            ) in operation_groups_metadata.items():
-                try:
-                    operation_group = [og for og in operation_groups if og.name == operation_group_name][0]
-                except IndexError:
-                    operation_group = OperationGroup(operation_group_name)
-                    operation_groups.append(operation_group)
-                operation_group.append_available_api(version_path.name)
-                operation_group.append_api_class_name_pair(version_path.name, operation_group_class_name)
-        operation_groups.sort(key=lambda x: x.name)
-        return operation_groups
-
-    @property
-    def host_variable_name(self) -> str:
-        if self.client.parameterized_host_template_to_api_version:
-            return "base_url"
-        params = self.global_parameters.parameters + self.global_parameters.service_client_specific_global_parameters
-        try:
-            return next(p for p in params if p.name in ["endpoint", "base_url"]).name
-        except StopIteration:
-            return "_endpoint"
-
-    @property
-    def last_rt_list(self) -> Dict[str, str]:
-        """Build the a mapping RT => API version if RT doesn't exist in latest detected API version.
-
-        Example:
-        last_rt_list = {
-        'check_dns_name_availability': '2018-05-01'
-        }
-
-        There is one subtle scenario if PREVIEW mode is disabled:
-        - RT1 available on 2019-05-01 and 2019-06-01-preview
-        - RT2 available on 2019-06-01-preview
-        - RT3 available on 2019-07-01-preview
-
-        Then, if I put "RT2: 2019-06-01-preview" in the list, this means I have to make
-        "2019-06-01-preview" the default for models loading (otherwise "RT2: 2019-06-01-preview" won't work).
-        But this likely breaks RT1 default operations at "2019-05-01", with default models at "2019-06-01-preview"
-        since "models" are shared for the entire set of operations groups (I wished models would be split by
-        operation groups, but meh, that's not the case)
-
-        So, until we have a smarter Autorest to deal with that, only preview RTs which do not share models with
-        a stable RT can be added to this map. In this case, RT2 is out, RT3 is in.
-        """
-
-        def there_is_a_rt_that_contains_api_version(rt_dict, api_version):
-            "Test in the given api_version is is one of those RT."
-            for rt_api_version in rt_dict.values():
-                if api_version in rt_api_version:
-                    return True
-            return False
-
-        last_rt_list = {}
-
-        # First let's map operation groups to their available APIs
-        versioned_dict = {
-            operation_group.name: operation_group.available_apis for operation_group in self.operation_groups
-        }
-
-        # Now let's also include mixins to their available APIs
-        versioned_dict.update(
-            {
-                mixin_operation.name: mixin_operation.available_apis
-                for mixin_operation in self.operation_mixin_group.mixin_operations
-            }
-        )
-        for operation, api_versions_list in versioned_dict.items():
-            local_default_api_version = _get_default_api_version_from_list(
-                self.mod_to_api_version,
-                api_versions_list,
-                self.preview_mode,
-                self.user_specified_default_api,
-            )
-            if local_default_api_version == self.default_api_version:
-                continue
-            # If some others RT contains "local_default_api_version", and
-            # if it's greater than the future default, danger, don't profile it
-            if (
-                there_is_a_rt_that_contains_api_version(versioned_dict, local_default_api_version)
-                and local_default_api_version > self.default_api_version
-            ):
-                continue
-            last_rt_list[operation] = local_default_api_version
-        return last_rt_list
-
-    @property
-    def default_models(self):
-        return sorted({self.default_api_version} | {versions for _, versions in self.last_rt_list.items()})
diff --git a/packages/autorest.python/autorest/multiapi/models/config.py b/packages/autorest.python/autorest/multiapi/models/config.py
deleted file mode 100644
index 6cd273c631e..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/config.py
+++ /dev/null
@@ -1,24 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-import json
-from typing import Any, Dict
-from .imports import FileImport
-
-
-class Config:
-    def __init__(self, default_version_metadata: Dict[str, Any]):
-        self.credential = default_version_metadata["config"]["credential"]
-        self.credential_scopes = default_version_metadata["config"]["credential_scopes"]
-        self.default_version_metadata = default_version_metadata
-
-    def imports(self, async_mode: bool) -> FileImport:
-        imports_to_load = "async_imports" if async_mode else "sync_imports"
-        return FileImport(json.loads(self.default_version_metadata["config"][imports_to_load]))
-
-    def credential_call(self, async_mode: bool) -> str:
-        if async_mode:
-            return self.default_version_metadata["config"]["credential_call_async"]
-        return self.default_version_metadata["config"]["credential_call_sync"]
diff --git a/packages/autorest.python/autorest/multiapi/models/constant_global_parameter.py b/packages/autorest.python/autorest/multiapi/models/constant_global_parameter.py
deleted file mode 100644
index 21b31a99201..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/constant_global_parameter.py
+++ /dev/null
@@ -1,11 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-
-class ConstantGlobalParameter:
-    def __init__(self, name: str, value: str):
-        self.name = name
-        self.value = value
diff --git a/packages/autorest.python/autorest/multiapi/models/global_parameter.py b/packages/autorest.python/autorest/multiapi/models/global_parameter.py
deleted file mode 100644
index 62f83a9b87a..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/global_parameter.py
+++ /dev/null
@@ -1,34 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from typing import Any, Dict
-
-
-class GlobalParameter:
-    def __init__(
-        self,
-        name: str,
-        global_parameter_metadata_sync: Dict[str, Any],
-        global_parameter_metadata_async: Dict[str, Any],
-    ):
-        self.name = name
-        self.global_parameter_metadata_sync = global_parameter_metadata_sync
-        self.global_parameter_metadata_async = global_parameter_metadata_async
-        self.required = global_parameter_metadata_sync["required"]
-        self.method_location = global_parameter_metadata_sync["method_location"]
-
-    def _global_parameter_metadata(self, async_mode: bool) -> Dict[str, Any]:
-        if async_mode:
-            return self.global_parameter_metadata_async
-        return self.global_parameter_metadata_sync
-
-    def signature(self, async_mode: bool) -> str:
-        return self._global_parameter_metadata(async_mode)["signature"]
-
-    def description(self, async_mode: bool) -> str:
-        return self._global_parameter_metadata(async_mode)["description"]
-
-    def docstring_type(self, async_mode: bool) -> str:
-        return self._global_parameter_metadata(async_mode)["docstring_type"]
diff --git a/packages/autorest.python/autorest/multiapi/models/global_parameters.py b/packages/autorest.python/autorest/multiapi/models/global_parameters.py
deleted file mode 100644
index f4502297c67..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/global_parameters.py
+++ /dev/null
@@ -1,53 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from typing import Any, Dict, List
-from .global_parameter import GlobalParameter
-from .constant_global_parameter import ConstantGlobalParameter
-
-
-def _convert_global_parameters(sync_metadata, async_metadata):
-    global_parameters = [
-        GlobalParameter(
-            name=parameter_name,
-            global_parameter_metadata_sync=gp_sync,
-            global_parameter_metadata_async=async_metadata[parameter_name],
-        )
-        for parameter_name, gp_sync in sync_metadata.items()
-    ]
-    return global_parameters
-
-
-class GlobalParameters:
-    def __init__(
-        self,
-        global_parameters_metadata: Dict[str, Any],
-    ):
-        self.call = global_parameters_metadata["call"]
-        self.global_parameters_metadata = global_parameters_metadata
-
-    @property
-    def service_client_specific_global_parameters(self) -> List[GlobalParameter]:
-        """Return global params specific to multiapi service client + config
-        api_version, endpoint (re-adding it in specific are), and profile
-        """
-        service_client_params_sync = self.global_parameters_metadata["service_client_specific"]["sync"]
-        service_client_params_async = self.global_parameters_metadata["service_client_specific"]["async"]
-
-        return _convert_global_parameters(service_client_params_sync, service_client_params_async)
-
-    @property
-    def parameters(self) -> List[GlobalParameter]:
-        global_parameters_metadata_sync = self.global_parameters_metadata["sync"]
-        global_parameters_metadata_async = self.global_parameters_metadata["async"]
-
-        return _convert_global_parameters(global_parameters_metadata_sync, global_parameters_metadata_async)
-
-    @property
-    def constant_parameters(self) -> List[ConstantGlobalParameter]:
-        return [
-            ConstantGlobalParameter(constant_name, constant_value)
-            for constant_name, constant_value in self.global_parameters_metadata["constant"].items()
-        ]
diff --git a/packages/autorest.python/autorest/multiapi/models/imports.py b/packages/autorest.python/autorest/multiapi/models/imports.py
deleted file mode 100644
index a0c5f2ca343..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/imports.py
+++ /dev/null
@@ -1,181 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from enum import Enum
-from typing import Dict, Optional, Set, Union, Tuple, cast
-from ..utils import convert_list_to_tuple
-
-
-class ImportType(str, Enum):
-    STDLIB = "stdlib"
-    THIRDPARTY = "thirdparty"
-    SDKCORE = "sdkcore"
-    LOCAL = "local"
-    BYVERSION = "by_version"
-
-
-class TypingSection(str, Enum):
-    REGULAR = "regular"  # this import is always a typing import
-    CONDITIONAL = "conditional"  # is a typing import when we're dealing with files that py2 will use, else regular
-    TYPING = "typing"  # never a typing import
-
-
-class FileImport:
-    def __init__(
-        self,
-        imports: Optional[
-            Dict[
-                TypingSection,
-                Dict[
-                    ImportType,
-                    Dict[
-                        str,
-                        Set[
-                            Optional[
-                                Union[
-                                    str,
-                                    Tuple[
-                                        str,
-                                        str,
-                                    ],
-                                    Tuple[
-                                        str,
-                                        Optional[str],
-                                        Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                                    ],
-                                ]
-                            ]
-                        ],
-                    ],
-                ],
-            ]
-        ] = None,
-    ) -> None:
-        # Basic implementation
-        # First level dict: TypingSection
-        # Second level dict: ImportType
-        # Third level dict: the package name.
-        # Fourth level set: None if this import is a "import", the name to import if it's a "from"
-        self._imports: Dict[
-            TypingSection,
-            Dict[
-                ImportType,
-                Dict[
-                    str,
-                    Set[
-                        Optional[
-                            Union[
-                                str,
-                                Tuple[
-                                    str,
-                                    str,
-                                ],
-                                Tuple[
-                                    str,
-                                    Optional[str],
-                                    Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                                ],
-                            ]
-                        ]
-                    ],
-                ],
-            ],
-        ] = (
-            imports or {}
-        )
-
-    def _add_import(
-        self,
-        from_section: str,
-        import_type: ImportType,
-        name_import: Optional[
-            Union[
-                str,
-                Tuple[
-                    str,
-                    str,
-                ],
-                Tuple[
-                    str,
-                    Optional[str],
-                    Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                ],
-            ]
-        ] = None,
-        typing_section: TypingSection = TypingSection.REGULAR,
-    ) -> None:
-        name_input = cast(
-            Optional[
-                Union[
-                    str,
-                    Tuple[
-                        str,
-                        str,
-                    ],
-                    Tuple[
-                        str,
-                        Optional[str],
-                        Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                    ],
-                ]
-            ],
-            convert_list_to_tuple(name_import),
-        )
-        target_values = (
-            self._imports.setdefault(typing_section, {}).setdefault(import_type, {}).setdefault(from_section, set())
-        )
-        if isinstance(target_values, list):
-            if name_input not in target_values:
-                target_values.append(name_input)
-        else:
-            target_values.add(name_input)
-
-    def add_submodule_import(
-        self,
-        from_section: str,
-        name_import: str,
-        import_type: ImportType,
-        typing_section: TypingSection = TypingSection.REGULAR,
-    ) -> None:
-        """Add an import to this import block."""
-        self._add_import(from_section, import_type, name_import, typing_section)
-
-    @property
-    def imports(
-        self,
-    ) -> Dict[
-        TypingSection,
-        Dict[
-            ImportType,
-            Dict[
-                str,
-                Set[
-                    Optional[
-                        Union[
-                            str,
-                            Tuple[
-                                str,
-                                str,
-                            ],
-                            Tuple[
-                                str,
-                                Optional[str],
-                                Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                            ],
-                        ]
-                    ]
-                ],
-            ],
-        ],
-    ]:
-        return self._imports
-
-    def merge(self, file_import: "FileImport") -> None:
-        """Merge the given file import format."""
-        for typing_section, import_type_dict in file_import.imports.items():
-            for import_type, package_list in import_type_dict.items():
-                for package_name, module_list in package_list.items():
-                    for module_name in module_list:
-                        self._add_import(package_name, import_type, module_name, typing_section)
diff --git a/packages/autorest.python/autorest/multiapi/models/mixin_operation.py b/packages/autorest.python/autorest/multiapi/models/mixin_operation.py
deleted file mode 100644
index ecb3080b2eb..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/mixin_operation.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from typing import Any, Dict, List, TypeVar
-from ..utils import _sync_or_async
-
-T = TypeVar("T")
-OrderedSet = Dict[T, None]
-
-
-class MixinOperation:
-    def __init__(self, name: str, mixin_operation_metadata: Dict[str, Any]):
-        self.name = name
-        self.mixin_operation_metadata = mixin_operation_metadata
-        self._available_apis: OrderedSet[str] = {}
-
-    def call(self, async_mode: bool) -> str:
-        return self.mixin_operation_metadata[_sync_or_async(async_mode)]["call"]
-
-    def signature(self, async_mode: bool) -> str:
-        return self.mixin_operation_metadata[_sync_or_async(async_mode)]["signature"]
-
-    def description(self, async_mode: bool) -> str:
-        return self.mixin_operation_metadata[_sync_or_async(async_mode)]["doc"]
-
-    def coroutine(self, async_mode: bool) -> bool:
-        if not async_mode:
-            return False
-        return self.mixin_operation_metadata["async"]["coroutine"]
-
-    @property
-    def available_apis(self) -> List[str]:
-        return list(self._available_apis.keys())
-
-    def append_available_api(self, val: str) -> None:
-        self._available_apis[val] = None
diff --git a/packages/autorest.python/autorest/multiapi/models/operation_group.py b/packages/autorest.python/autorest/multiapi/models/operation_group.py
deleted file mode 100644
index 520a630ffba..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/operation_group.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from typing import Dict, List, TypeVar
-
-T = TypeVar("T")
-OrderedSet = Dict[T, None]
-
-
-class OperationGroup:
-    def __init__(self, name: str):
-        self.name = name
-        self._available_apis: OrderedSet[str] = {}
-        self._api_to_class_name: Dict[str, str] = {}
-
-    @property
-    def available_apis(self) -> List[str]:
-        return list(self._available_apis.keys())
-
-    def append_available_api(self, val: str) -> None:
-        self._available_apis[val] = None
-
-    def append_api_class_name_pair(self, api_version: str, class_name: str):
-        self._api_to_class_name[api_version] = class_name
-
-    def class_name(self, api_version: str):
-        return self._api_to_class_name[api_version]
diff --git a/packages/autorest.python/autorest/multiapi/models/operation_mixin_group.py b/packages/autorest.python/autorest/multiapi/models/operation_mixin_group.py
deleted file mode 100644
index 0949c824edf..00000000000
--- a/packages/autorest.python/autorest/multiapi/models/operation_mixin_group.py
+++ /dev/null
@@ -1,89 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-import json
-from typing import Any, Dict, List
-from pathlib import Path
-from .imports import FileImport
-from .mixin_operation import MixinOperation
-
-
-class OperationMixinGroup:
-    def __init__(
-        self,
-        version_path_to_metadata: Dict[Path, Dict[str, Any]],
-        default_api_version: str,
-    ):
-        self.default_api_version = default_api_version
-        self.version_path_to_metadata = version_path_to_metadata
-
-    def imports(self, async_mode: bool) -> FileImport:
-        imports = FileImport()
-        imports_to_load = "async_imports" if async_mode else "sync_imports"
-        for metadata_json in self.version_path_to_metadata.values():
-            if not metadata_json.get("operation_mixins"):
-                continue
-            mixin_imports = metadata_json["operation_mixins"][imports_to_load]
-            if mixin_imports != "None":
-                current_version_imports = FileImport(json.loads(mixin_imports))
-                imports.merge(current_version_imports)
-        return imports
-
-    def typing_definitions(self, async_mode: bool) -> str:
-        key = "sync_mixin_typing_definitions" if async_mode else "async_mixin_typing_definitions"
-        origin = "".join(
-            [
-                metadata_json.get("operation_mixins", {}).get(key, "")
-                for metadata_json in self.version_path_to_metadata.values()
-            ]
-        )
-        return "\n".join(set(origin.split("\n")))
-
-    def _use_metadata_of_default_api_version(self, mixin_operations: List[MixinOperation]) -> List[MixinOperation]:
-        default_api_version_path = [
-            version_path
-            for version_path in self.version_path_to_metadata.keys()
-            if version_path.name == self.default_api_version
-        ][0]
-        default_version_metadata = self.version_path_to_metadata[default_api_version_path]
-        if not default_version_metadata.get("operation_mixins"):
-            return mixin_operations
-        for name, metadata in default_version_metadata["operation_mixins"]["operations"].items():
-            if name.startswith("_"):
-                continue
-            mixin_operation = [mo for mo in mixin_operations if mo.name == name][0]
-            mixin_operation.mixin_operation_metadata = metadata
-        return mixin_operations
-
-    @property
-    def mixin_operations(self) -> List[MixinOperation]:
-        mixin_operations: List[MixinOperation] = []
-        for version_path, metadata_json in self.version_path_to_metadata.items():
-            if not metadata_json.get("operation_mixins"):
-                continue
-            mixin_operations_metadata = metadata_json["operation_mixins"]["operations"]
-            for (
-                mixin_operation_name,
-                mixin_operation_metadata,
-            ) in mixin_operations_metadata.items():
-                if mixin_operation_name.startswith("_"):
-                    continue
-                try:
-                    mixin_operation = [mo for mo in mixin_operations if mo.name == mixin_operation_name][0]
-                except IndexError:
-                    mixin_operation = MixinOperation(
-                        name=mixin_operation_name,
-                        mixin_operation_metadata=mixin_operation_metadata,
-                    )
-                    mixin_operations.append(mixin_operation)
-                mixin_operation.append_available_api(version_path.name)
-
-        # make sure that the signature, doc, call, and coroutine is based off of the default api version,
-        # if the default api version has a definition for it.
-        # will hopefully get this removed once we deal with mixin operations with different signatures
-        # for different api versions
-        mixin_operations = self._use_metadata_of_default_api_version(mixin_operations)
-        mixin_operations.sort(key=lambda x: x.name)
-        return mixin_operations
diff --git a/packages/autorest.python/autorest/multiapi/serializers/__init__.py b/packages/autorest.python/autorest/multiapi/serializers/__init__.py
deleted file mode 100644
index 9f197a7e2e0..00000000000
--- a/packages/autorest.python/autorest/multiapi/serializers/__init__.py
+++ /dev/null
@@ -1,145 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from pathlib import Path
-from typing import Any, Optional, Union, List
-from jinja2 import PackageLoader, Environment
-from pygen import ReaderAndWriter
-from pygen.utils import build_policies
-
-from .import_serializer import FileImportSerializer
-
-from ...jsonrpc import AutorestAPI
-from ..models import CodeModel, GlobalParameter
-from ... import ReaderAndWriterAutorest
-
-
-__all__ = [
-    "MultiAPISerializer",
-]
-
-_FILE_TO_TEMPLATE = {
-    "init": "multiapi_init.py.jinja2",
-    "client": "multiapi_service_client.py.jinja2",
-    "config": "multiapi_config.py.jinja2",
-    "models": "multiapi_models.py.jinja2",
-    "operations_mixin": "multiapi_operations_mixin.py.jinja2",
-}
-
-
-def _method_signature_helper(parameters: List[GlobalParameter], async_mode: bool) -> List[str]:
-    return [p.signature(async_mode) for p in sorted(parameters, key=lambda p: p.required, reverse=True)]
-
-
-def _get_file_path(filename: str, async_mode: bool) -> Path:
-    filename += ".py"
-    if async_mode:
-        return Path("aio") / filename
-    return Path(filename)
-
-
-class MultiAPISerializer(ReaderAndWriter):  # pylint: disable=abstract-method
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(**kwargs)
-        self.env = Environment(
-            loader=PackageLoader("autorest.multiapi", "templates"),
-            keep_trailing_newline=True,
-            line_statement_prefix="##",
-            line_comment_prefix="###",
-            trim_blocks=True,
-            lstrip_blocks=True,
-        )
-
-    def _serialize_helper(self, code_model: CodeModel, async_mode: bool) -> None:
-        def _render_template(file: str, **kwargs: Any) -> str:
-            template = self.env.get_template(_FILE_TO_TEMPLATE[file])
-            all_params = (
-                code_model.global_parameters.parameters
-                + code_model.global_parameters.service_client_specific_global_parameters
-            )
-            positional_params = [p for p in all_params if p.method_location == "positional"]
-            keyword_only_params = [p for p in all_params if p.method_location == "keywordOnly"]
-            return template.render(
-                code_model=code_model,
-                async_mode=async_mode,
-                positional_params=_method_signature_helper(positional_params, async_mode),
-                keyword_only_params=_method_signature_helper(keyword_only_params, async_mode),
-                **kwargs
-            )
-
-        # serialize init file
-        self.write_file(_get_file_path("__init__", async_mode), _render_template("init"))
-
-        # serialize service client file
-        imports = FileImportSerializer(code_model.client.imports(async_mode))
-        config_policies = build_policies(code_model.azure_arm, async_mode, is_azure_flavor=True)
-        self.write_file(
-            _get_file_path(code_model.client.filename, async_mode),
-            _render_template("client", imports=imports, config_policies=config_policies),
-        )
-
-        # serialize config file
-        imports = FileImportSerializer(code_model.config.imports(async_mode))
-        self.write_file(
-            _get_file_path("_configuration", async_mode),
-            _render_template("config", imports=imports),
-        )
-
-        # serialize mixins
-        if code_model.operation_mixin_group.mixin_operations:
-            imports = FileImportSerializer(
-                code_model.operation_mixin_group.imports(async_mode),
-                code_model.operation_mixin_group.typing_definitions(async_mode),
-            )
-            self.write_file(
-                _get_file_path("_operations_mixin", async_mode),
-                _render_template("operations_mixin", imports=imports),
-            )
-
-        # serialize models
-        self.write_file(Path("models.py"), _render_template("models"))
-
-    def _serialize_version_file(self) -> None:
-        if self.read_file("_version.py"):
-            self.write_file("_version.py", self.read_file("_version.py"))
-        elif self.read_file("version.py"):
-            self.write_file("_version.py", self.read_file("version.py"))
-        else:
-            template = self.env.get_template("multiapi_version.py.jinja2")
-            self.write_file(Path("_version.py"), template.render())
-
-    def serialize(self, code_model: CodeModel, no_async: Optional[bool]) -> None:
-        self._serialize_helper(code_model, async_mode=False)
-        if not no_async:
-            self._serialize_helper(code_model, async_mode=True)
-
-        self._serialize_version_file()
-
-        # don't erase patch file
-        if self.read_file("_patch.py"):
-            self.write_file("_patch.py", self.read_file("_patch.py"))
-
-        self.write_file(Path("py.typed"), "# Marker file for PEP 561.")
-
-        if not code_model.client.client_side_validation:
-            codegen_env = Environment(
-                loader=PackageLoader("pygen.codegen", "templates"),
-                keep_trailing_newline=True,
-                line_statement_prefix="##",
-                line_comment_prefix="###",
-                trim_blocks=True,
-                lstrip_blocks=True,
-            )
-            self.write_file(
-                Path("_serialization.py"),
-                codegen_env.get_template("serialization.py.jinja2").render(
-                    code_model=code_model,
-                ),
-            )
-
-
-class MultiAPISerializerAutorest(MultiAPISerializer, ReaderAndWriterAutorest):
-    def __init__(self, autorestapi: AutorestAPI, *, output_folder: Union[str, Path]) -> None:
-        super().__init__(autorestapi=autorestapi, output_folder=output_folder)
diff --git a/packages/autorest.python/autorest/multiapi/serializers/import_serializer.py b/packages/autorest.python/autorest/multiapi/serializers/import_serializer.py
deleted file mode 100644
index 39e2529f416..00000000000
--- a/packages/autorest.python/autorest/multiapi/serializers/import_serializer.py
+++ /dev/null
@@ -1,181 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from copy import deepcopy
-from typing import Dict, Set, Optional, List, Tuple, Union
-from ..models import ImportType, FileImport, TypingSection
-from ..utils import convert_list_to_tuple
-
-
-def _serialize_package(
-    package_name: str,
-    module_list: Set[
-        Optional[
-            Union[
-                str,
-                Tuple[
-                    str,
-                    str,
-                ],
-                Tuple[
-                    str,
-                    Optional[str],
-                    Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                ],
-            ]
-        ]
-    ],
-    delimiter: str,
-) -> str:
-    buffer = []
-
-    versioned_modules = set()
-    normal_modules = set()
-    for m in module_list:
-        if m and isinstance(m, (tuple, list)) and len(m) > 2:
-            versioned_modules.add(convert_list_to_tuple(m))
-        else:
-            normal_modules.add(m)
-    if None in normal_modules:
-        buffer.append(f"import {package_name}")
-    if normal_modules != {None} and len(normal_modules) > 0:
-        buffer.append(
-            "from {} import {}".format(
-                package_name,
-                ", ".join(
-                    sorted(
-                        [
-                            mod if isinstance(mod, str) else f"{mod[0]} as {mod[1]}"
-                            for mod in normal_modules
-                            if mod is not None
-                        ]
-                    )
-                ),
-            )
-        )
-    for submodule_name, alias, version_modules in versioned_modules:
-        for n, (version, module_name, comment) in enumerate(version_modules):
-            buffer.append("{} sys.version_info >= {}:".format("if" if n == 0 else "elif", version))
-            buffer.append(
-                f"    from {module_name} import {submodule_name}{f' as {alias}' if alias else ''}"
-                f"{f' # {comment}' if comment else ''}"
-            )
-        buffer.append("else:")
-        buffer.append(
-            f"    from {package_name} import {submodule_name}{f' as {alias}' if alias else ''}"
-            "  # type: ignore  # pylint: disable=ungrouped-imports"
-        )
-    return delimiter.join(buffer)
-
-
-def _serialize_type(
-    import_type_dict: Dict[
-        str,
-        Set[
-            Optional[
-                Union[
-                    str,
-                    Tuple[
-                        str,
-                        str,
-                    ],
-                    Tuple[
-                        str,
-                        Optional[str],
-                        Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                    ],
-                ]
-            ]
-        ],
-    ],
-    delimiter: str,
-) -> str:
-    """Serialize a given import type."""
-    import_list = []
-    for package_name in sorted(list(import_type_dict.keys())):
-        module_list = import_type_dict[package_name]
-        import_list.append(_serialize_package(package_name, module_list, delimiter))
-    return delimiter.join(import_list)
-
-
-def _get_import_clauses(
-    imports: Dict[
-        ImportType,
-        Dict[
-            str,
-            Set[
-                Optional[
-                    Union[
-                        str,
-                        Tuple[
-                            str,
-                            str,
-                        ],
-                        Tuple[
-                            str,
-                            Optional[str],
-                            Tuple[Tuple[Tuple[int, int], str, Optional[str]]],
-                        ],
-                    ]
-                ]
-            ],
-        ],
-    ],
-    delimiter: str,
-) -> List[str]:
-    import_clause = []
-    for import_type in ImportType:
-        if import_type in imports:
-            import_clause.append(_serialize_type(imports[import_type], delimiter))
-    return import_clause
-
-
-class FileImportSerializer:
-    def __init__(self, file_import: FileImport, typing_definitions: str = "") -> None:
-        self._file_import = file_import
-        self._typing_definitions = typing_definitions
-
-    def _switch_typing_section_key(self, new_key: TypingSection):
-        switched_dictionary = {}
-        switched_dictionary[new_key] = self._file_import.imports[TypingSection.CONDITIONAL]
-        return switched_dictionary
-
-    def _get_imports_dict(self, baseline_typing_section: TypingSection, add_conditional_typing: bool):
-        # If this is a python 3 file, our regular imports include the CONDITIONAL category
-        # If this is not a python 3 file, our typing imports include the CONDITIONAL category
-        file_import_copy = deepcopy(self._file_import)
-        if add_conditional_typing and self._file_import.imports.get(TypingSection.CONDITIONAL):
-            # we switch the TypingSection key for the CONDITIONAL typing imports so we can merge
-            # the imports together
-            switched_imports_dictionary = self._switch_typing_section_key(baseline_typing_section)
-            switched_imports = FileImport(switched_imports_dictionary)
-            file_import_copy.merge(switched_imports)
-        return file_import_copy.imports.get(baseline_typing_section, {})
-
-    def _add_type_checking_import(self):
-        if self._file_import.imports.get(TypingSection.TYPING):
-            self._file_import.add_submodule_import("typing", "TYPE_CHECKING", ImportType.STDLIB)
-
-    def __str__(self) -> str:
-        self._add_type_checking_import()
-        regular_imports = ""
-        regular_imports_dict = self._get_imports_dict(
-            baseline_typing_section=TypingSection.REGULAR,
-            add_conditional_typing=True,
-        )
-
-        if regular_imports_dict:
-            regular_imports = "\n\n".join(_get_import_clauses(regular_imports_dict, "\n"))
-
-        typing_imports = ""
-        typing_imports_dict = self._get_imports_dict(
-            baseline_typing_section=TypingSection.TYPING,
-            add_conditional_typing=False,
-        )
-        if typing_imports_dict:
-            typing_imports += "\n\nif TYPE_CHECKING:\n    # pylint: disable=unused-import,ungrouped-imports\n    "
-            typing_imports += "\n\n    ".join(_get_import_clauses(typing_imports_dict, "\n    "))
-
-        return regular_imports + typing_imports + self._typing_definitions
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_config.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_config.py.jinja2
deleted file mode 100644
index 4f18d233eab..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_config.py.jinja2
+++ /dev/null
@@ -1,89 +0,0 @@
-{% macro method_signature() %}
-def __init__(
-    self,
-    {% for parameter in code_model.global_parameters.parameters %}
-        {% if parameter.required %}
-    {{ parameter.signature(async_mode) }}
-        {% endif %}
-    {% endfor %}
-    {% for parameter in code_model.global_parameters.parameters %}
-        {% if not parameter.required %}
-    {{ parameter.signature(async_mode) }}
-        {% endif %}
-    {% endfor %}
-    **kwargs: Any
-){{" -> None" if async_mode else "" }}:{% endmacro %}
-{% set version_import = ".._version" if async_mode else "._version" %}
-{% set async_prefix = "Async" if async_mode else "" %}
-{# actual template starts here #}
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-{{ imports }}
-
-class {{ code_model.client.name }}Configuration:
-    """Configuration for {{ code_model.client.name }}.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-{% if code_model.global_parameters.parameters %}
-
-{% endif %}
-{% for parameter in code_model.global_parameters.parameters %}
-    :param {{ parameter.name }}: {{ parameter.description(async_mode) }}
-    :type {{ parameter.name }}: {{ parameter.docstring_type(async_mode) }}
-{% endfor %}
-    """
-
-    {{ method_signature()|indent }}
-{% for parameter in code_model.global_parameters.parameters %}
-    {% if parameter.required %}
-        if {{ parameter.name }} is None:
-            raise ValueError("Parameter '{{ parameter.name }}' must not be None.")
-    {% endif %}
-{% endfor %}
-
-{% for parameter in code_model.global_parameters.parameters %}
-        self.{{ parameter.name }} = {{ parameter.name }}
-{% endfor %}
-{% if code_model.global_parameters.constant_parameters %}
-    {% for constant_parameter in code_model.global_parameters.constant_parameters %}
-        self.{{ constant_parameter.name }} = {{ constant_parameter.value }}
-    {% endfor %}
-{% endif %}
-{% if code_model.config.credential_scopes is not none %}
-        self.credential_scopes = kwargs.pop('credential_scopes', {{ code_model.config.credential_scopes }})
-{% endif %}
-        kwargs.setdefault('sdk_moniker', '{{ code_model.package_name|lower }}/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ){{ " -> None" if async_mode else "" }}:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or {{ "ARM" if code_model.azure_arm else "policies." }}HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.{{ async_prefix }}RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.{{ async_prefix }}RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        {% if code_model.config.credential %}
-        {# only adding this if credential_scopes is not passed during code generation #}
-        {% if code_model.config.credential_scopes is not none and code_model.config.credential_scopes|length == 0 %}
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        {% endif %}
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = {{ code_model.config.credential_call(async_mode) }}
-        {% endif %}
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_init.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_init.py.jinja2
deleted file mode 100644
index 91ecec044b1..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_init.py.jinja2
+++ /dev/null
@@ -1,22 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from .{{ code_model.client.filename }} import {{ code_model.client.name }}
-__all__ = ['{{ code_model.client.name }}']
-{% if not async_mode %}
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
-{% endif %}
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_models.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_models.py.jinja2
deleted file mode 100644
index e9032b85cd8..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_models.py.jinja2
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-{% for mod_api_version in code_model.default_models %}
-from .{{ mod_api_version }}.models import *
-{% endfor %}
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_operations_mixin.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_operations_mixin.py.jinja2
deleted file mode 100644
index 9e0db96c539..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_operations_mixin.py.jinja2
+++ /dev/null
@@ -1,39 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from {{ ".." if async_mode else "." }}_serialization import Serializer, Deserializer
-{% if imports %}
-{{ imports }}
-{% endif %}
-
-
-class {{ code_model.client.name }}OperationsMixin(object):
-{% for mixin_operation in code_model.operation_mixin_group.mixin_operations %}
-
-    {{ mixin_operation.signature(async_mode) | indent }}        {{ mixin_operation.description(async_mode) | indent(8) }}
-        api_version = self._get_api_version('{{ mixin_operation.name }}')
-        {% for api in mixin_operation.available_apis|sort %}
-        {% set if_statement = "if" if loop.first else "elif" %}
-        {{ if_statement }} api_version == '{{ code_model.mod_to_api_version[api] }}':
-            from {{ ".." if async_mode else "." }}{{ api }}{{ ".aio" if async_mode else "" }}.operations import {{ code_model.client.name }}OperationsMixin as OperationClass
-        {% endfor %}
-        else:
-            raise ValueError("API version {} does not have operation '{{ mixin_operation.name }}'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        {% if not code_model.client.client_side_validation %}
-        mixin_instance._serialize.client_side_validation = False
-        {% endif %}
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return {{ "await " if mixin_operation.coroutine(async_mode) }}mixin_instance.{{ mixin_operation.name }}({{ mixin_operation.call(async_mode) }})
-{% endfor %}
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_service_client.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_service_client.py.jinja2
deleted file mode 100644
index dcd28ad4641..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_service_client.py.jinja2
+++ /dev/null
@@ -1,163 +0,0 @@
-{% macro method_signature() %}
-def __init__(
-    self,
-    {% for pos in positional_params %}
-    {{ pos }}
-    {% endfor %}
-    {% if keyword_only_params %}
-    *,
-    {% endif %}
-    {% for ko in keyword_only_params %}
-    {{ ko }}
-    {% endfor %}
-    **kwargs: Any
-){{" -> None" if async_mode else "" }}:{% endmacro %}
-{# actual template starts here #}
-{% set relative_path = ".." if async_mode else "." %}
-{% set def = "async def" if async_mode else "def" %}
-{% set async_prefix = "Async" if async_mode else "" %}
-{% set a_prefix = "a" if async_mode else "" %}
-{% set await = "await " if async_mode else "" %}
-{% set credential_scopes = "credential_scopes=credential_scopes, " if code_model.config.credential_scopes is not none and code_model.azure_arm else "" %}
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-{{ imports }}
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class {{ code_model.client.name }}({% if code_model.operation_mixin_group.mixin_operations %}{{ code_model.client.name }}OperationsMixin, {% endif %}MultiApiClientMixin, _SDKClient):
-    """{{ code_model.client.description }}
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-{% if code_model.global_parameters.parameters %}
-
-{% endif %}
-{% for parameter in code_model.global_parameters.parameters %}
-    :param {{ parameter.name }}: {{ parameter.description(async_mode) }}
-    :type {{ parameter.name }}: {{ parameter.docstring_type(async_mode) }}
-{% endfor %}
-{% for parameter in code_model.global_parameters.service_client_specific_global_parameters %}
-    :param {{ parameter.name }}: {{ parameter.description(async_mode) }}
-    :type {{ parameter.name }}: {{ parameter.docstring_type(async_mode) }}
-{% endfor %}
-    {% if code_model.client.has_public_lro_operations %}
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    {% endif %}
-    """
-
-    DEFAULT_API_VERSION = '{{ code_model.mod_to_api_version[code_model.default_api_version] }}'
-    _PROFILE_TAG = "{{ code_model.module_name }}.{{ code_model.client.name }}"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-{% for rt_name, api_version in code_model.last_rt_list|dictsort %}
-            '{{ rt_name }}': '{{ code_model.mod_to_api_version[api_version] }}',
-{% endfor %}
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    {{ method_signature()|indent }}
-        {% if not code_model.azure_arm %}
-        {% if not code_model.client.host_value %}
-        {% for parameterized_host_template, api_versions in code_model.client.parameterized_host_template_to_api_version|dictsort %}
-        {% set if_statement = "if" if loop.first else "elif" %}
-        {{ if_statement ~ " api_version == '" ~ api_versions|join("' or api_version == '") ~ "'" }}:
-            base_url = {{ parameterized_host_template }}
-        {% endfor %}
-        else:
-            raise ValueError("API version {} is not available".format(api_version))
-        {% endif %}
-        {% endif %}
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        {% if credential_scopes %}
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        {% endif %}
-        self._config = {{ code_model.client.name }}Configuration({{ code_model.global_parameters.call }}{{ ", " if code_model.global_parameters.call }}{{ credential_scopes }}**kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                {% for p in config_policies %}
-                {{ p }},
-                {% endfor %}
-            ]
-        {% set host_variable_name = "cast(str, " + code_model.host_variable_name + ")" if credential_scopes else code_model.host_variable_name %}
-        self._client: {{ async_prefix }}{{ code_model.client.pipeline_client }} = {{ async_prefix }}{{ code_model.client.pipeline_client }}(base_url={{ host_variable_name }}, policies=_policies, **kwargs)
-        super({{ code_model.client.name }}, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-        {% for mod_api_version, api_version in code_model.mod_to_api_version|dictsort %}
-           * {{ api_version }}: :mod:`{{ mod_api_version }}.models<{{ code_model.module_name }}.{{ mod_api_version }}.models>`
-        {% endfor %}
-        """
-        {% for mod_api_version, api_version in code_model.mod_to_api_version|dictsort %}
-        {% set if_statement = "if" if loop.first else "elif" %}
-        {{if_statement }} api_version == '{{ api_version }}':
-            from {{ relative_path }}{{ mod_api_version }} import models
-            return models
-        {% endfor %}
-        raise ValueError("API version {} is not available".format(api_version))
-    {% for operation_group in code_model.operation_groups %}
-
-    @property
-    def {{ operation_group.name }}(self):
-        """Instance depends on the API version:
-
-        {% for api in operation_group.available_apis | sort %}
-           * {{ code_model.mod_to_api_version[api] }}: :class:`{{ operation_group.class_name(api) }}<{{ code_model.module_name }}.{{ api }}{{ ".aio" if async_mode else "" }}.operations.{{ operation_group.class_name(api) }}>`
-        {% endfor %}
-        """
-        api_version = self._get_api_version('{{ operation_group.name }}')
-        {% for api in operation_group.available_apis | sort %}
-        {% set if_statement = "if" if loop.first else "elif" %}
-        {{ if_statement }} api_version == '{{ code_model.mod_to_api_version[api] }}':
-            from {{ relative_path }}{{ api }}.{{ "aio." if async_mode else "" }}operations import {{ operation_group.class_name(api) }} as OperationClass
-        {% endfor %}
-        else:
-            raise ValueError("API version {} does not have operation group '{{ operation_group.name }}'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-    {% endfor %}
-
-    {{ def }} close(self):
-        {{ await }}self._client.close()
-    {{ def }} __{{ a_prefix }}enter__(self):
-        {{ await }}self._client.__{{ a_prefix }}enter__()
-        return self
-    {{ def }} __{{ a_prefix }}exit__(self, *exc_details):
-        {{ await }}self._client.__{{ a_prefix }}exit__(*exc_details)
diff --git a/packages/autorest.python/autorest/multiapi/templates/multiapi_version.py.jinja2 b/packages/autorest.python/autorest/multiapi/templates/multiapi_version.py.jinja2
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/autorest/multiapi/templates/multiapi_version.py.jinja2
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/autorest/multiapi/utils.py b/packages/autorest.python/autorest/multiapi/utils.py
deleted file mode 100644
index 0323c6ea530..00000000000
--- a/packages/autorest.python/autorest/multiapi/utils.py
+++ /dev/null
@@ -1,51 +0,0 @@
-# -------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-import logging
-from typing import Dict, List, Optional
-
-_LOGGER = logging.getLogger(__name__)
-
-
-def _sync_or_async(async_mode: bool) -> str:
-    return "async" if async_mode else "sync"
-
-
-def _get_default_api_version_from_list(
-    mod_to_api_version: Dict[str, str],
-    api_versions_list: List[str],
-    preview_mode: bool,
-    user_specified_default_api: Optional[str],
-) -> str:
-    """Get the floating latest, from a random list of API versions."""
-
-    # I need user_specified_default_api to be v2019_06_07_preview shaped if it exists, let's be smart
-    # and change it automatically so I can take both syntax as input
-    if user_specified_default_api and not user_specified_default_api.startswith("v"):
-        default_api_version = [
-            mod_api for mod_api, real_api in mod_to_api_version.items() if real_api == user_specified_default_api
-        ][0]
-        _LOGGER.info("Default API version will be: %s", default_api_version)
-        return default_api_version
-
-    absolute_latest = sorted(api_versions_list)[-1]
-    not_preview_versions = [version for version in api_versions_list if "preview" not in version]
-
-    # If there is no preview, easy: the absolute latest is the only latest
-    if not not_preview_versions:
-        return absolute_latest
-
-    # If preview mode, let's use the absolute latest, I don't care preview or stable
-    if preview_mode:
-        return absolute_latest
-
-    # If not preview mode, and there is preview, take the latest known stable
-    return sorted(not_preview_versions)[-1]
-
-
-def convert_list_to_tuple(l):
-    if not isinstance(l, list):
-        return l
-    return tuple(convert_list_to_tuple(x) for x in l) if isinstance(l, list) else l
diff --git a/packages/autorest.python/samples/readme.md b/packages/autorest.python/samples/readme.md
index bdaec4fda39..f125e12b367 100644
--- a/packages/autorest.python/samples/readme.md
+++ b/packages/autorest.python/samples/readme.md
@@ -7,7 +7,6 @@ Here are our samples for common generation scenarios
 |------------------|-------------|-------------
 |Generating most basic | [readme.md][basic_readme] | [generated][basic_generated]
 |Generating [management plane][mgmt] | [readme.md][mgmt_readme] | [generated][mgmt_generated]
-|Generating multi API code | [readme.md][multiapi_readme] | [generated][multiapi_generated]
 |Generating with [`AzureKeyCredential`][azure_key_credential] | [readme.md][azure_key_credential_readme] | [generated][azure_key_credential_generated]
 
 <!-- LINKS -->
@@ -16,8 +15,6 @@ Here are our samples for common generation scenarios
 [mgmt]: https://docs.microsoft.com/azure/azure-resource-manager/management/control-plane-and-data-plane#control-plane
 [mgmt_readme]: https://github.com/Azure/autorest.python/blob/main/packages/autorest.python/samples/specification/management/readme.md
 [mgmt_generated]: https://github.com/Azure/autorest.python/tree/main/packages/autorest.python/samples/specification/management/generated
-[multiapi_readme]: https://github.com/Azure/autorest.python/blob/main/packages/autorest.python/samples/specification/multiapi/readme.md
-[multiapi_generated]: https://github.com/Azure/autorest.python/tree/main/packages/autorest.python/samples/specification/multiapi/generated
 [azure_key_credential]: https://docs.microsoft.com/python/api/azure-core/azure.core.credentials.azurekeycredential?view=azure-python
 [azure_key_credential_readme]: https://github.com/Azure/autorest.python/blob/main/packages/autorest.python/samples/specification/azure_key_credential/readme.md
 [azure_key_credential_generated]: https://github.com/Azure/autorest.python/tree/main/packages/autorest.python/samples/specification/azure_key_credential/generated
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/__init__.py
deleted file mode 100644
index d55ccad1f57..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/__init__.py
deleted file mode 100644
index d55ccad1f57..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_configuration.py
deleted file mode 100644
index 3502417d7af..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'azure-multiapi-sample/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_multiapi_service_client.py
deleted file mode 100644
index feb116a7cb4..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_multiapi_service_client.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "azure.multiapi.sample.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles=KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<azure.multiapi.sample.v1.models>`
-           * 2.0.0: :mod:`v2.models<azure.multiapi.sample.v2.models>`
-           * 3.0.0: :mod:`v3.models<azure.multiapi.sample.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<azure.multiapi.sample.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<azure.multiapi.sample.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_operations_mixin.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_operations_mixin.py
deleted file mode 100644
index 5173456e5e1..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_operations_mixin.py
+++ /dev/null
@@ -1,174 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~azure.multiapi.sample.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_serialization.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/serialization.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_version.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_version.py
deleted file mode 100644
index 780a1be7a6e..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_configuration.py
deleted file mode 100644
index e8892809460..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'azure-multiapi-sample/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_multiapi_service_client.py
deleted file mode 100644
index f731f1f57e6..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "azure.multiapi.sample.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles = KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<azure.multiapi.sample.v1.models>`
-           * 2.0.0: :mod:`v2.models<azure.multiapi.sample.v2.models>`
-           * 3.0.0: :mod:`v3.models<azure.multiapi.sample.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<azure.multiapi.sample.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<azure.multiapi.sample.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<azure.multiapi.sample.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_operations_mixin.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_operations_mixin.py
deleted file mode 100644
index 5698f8e36cf..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/aio/_operations_mixin.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/models.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/py.typed b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_configuration.py
deleted file mode 100644
index 37c89a196ec..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_metadata.json b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_metadata.json
deleted file mode 100644
index c5fd5d7875c..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_metadata.json
+++ /dev/null
@@ -1,196 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~azure.multiapi.sample.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~azure.multiapi.sample.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~azure.multiapi.sample.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_multiapi_service_client.py
deleted file mode 100644
index 752415c47de..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,124 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: azure.multiapi.sample.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/serialization.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/utils.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_configuration.py
deleted file mode 100644
index 6d3f8917a87..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index 07356d6e91d..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,129 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     azure.multiapi.sample.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 17be9460694..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,497 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.async_arm_polling import AsyncARMPolling
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~azure.multiapi.sample.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index d38c6342121..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,97 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_models_py3.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_models_py3.py
deleted file mode 100644
index b5877d520e4..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~azure.multiapi.sample.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~azure.multiapi.sample.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/models/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 66afa53f524..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,575 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.arm_polling import ARMPolling
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~azure.multiapi.sample.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~azure.multiapi.sample.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~azure.multiapi.sample.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~azure.multiapi.sample.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~azure.multiapi.sample.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 5e604939958..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/py.typed b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_configuration.py
deleted file mode 100644
index ed8135e749f..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_metadata.json b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_metadata.json
deleted file mode 100644
index c0657846f28..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~azure.multiapi.sample.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~azure.multiapi.sample.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_multiapi_service_client.py
deleted file mode 100644
index 46a1139d182..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: azure.multiapi.sample.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: azure.multiapi.sample.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/serialization.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/utils.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_configuration.py
deleted file mode 100644
index b99c41005e8..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index 46b99b10d99..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,133 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     azure.multiapi.sample.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     azure.multiapi.sample.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8c3c1e278dd..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,153 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index dc803572dcb..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,199 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 4ccfd325cd9..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_models_py3.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/models/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 23ca9a258f5..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 185c6187660..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,242 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index 81397c6ef9e..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/py.typed b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_configuration.py
deleted file mode 100644
index ea819054469..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_metadata.json b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_metadata.json
deleted file mode 100644
index a6c09865992..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~azure.multiapi.sample.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_multiapi_service_client.py
deleted file mode 100644
index da740a7f350..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: azure.multiapi.sample.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: azure.multiapi.sample.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/serialization.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/utils.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_configuration.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_configuration.py
deleted file mode 100644
index 66cbb7406ca..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi-sample/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_multiapi_service_client.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 1285855f6ad..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,133 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     azure.multiapi.sample.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     azure.multiapi.sample.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 95b3d4cf3a9..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,181 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 916d0fbb099..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,236 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 4fad9a72578..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,194 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~azure.multiapi.sample.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~azure.multiapi.sample.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_models_py3.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_models_py3.py
deleted file mode 100644
index 7d0d8f6b862..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~azure.multiapi.sample.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~azure.multiapi.sample.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/models/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/__init__.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index af4a9288fa5..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index 209b30a9b6f..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,270 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~azure.multiapi.sample.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~azure.multiapi.sample.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~azure.multiapi.sample.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index e20d41067fd..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,239 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~azure.multiapi.sample.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~azure.multiapi.sample.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~azure.multiapi.sample.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_patch.py b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/py.typed b/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/generated/azure/multiapi/sample/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/samples/specification/multiapi/readme.md b/packages/autorest.python/samples/specification/multiapi/readme.md
deleted file mode 100644
index a10cffbe38b..00000000000
--- a/packages/autorest.python/samples/specification/multiapi/readme.md
+++ /dev/null
@@ -1,67 +0,0 @@
-# Sample Multi API Generation
-
-This sample generates 3 API version: `v1`, `v2`, and `v3`. We first generate each API version individually in
-a batch execution, then generate a multi API client on top of these generated API versions
-
-### Settings
-
-``` yaml
-namespace: azure.multiapi.sample
-package-name: azure-multiapi-sample
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-azure-arm: true
-add-credential: true
-version-tolerant: false
-```
-
-### Multi API Generation
-
-These settings apply only when `--multiapi` is specified on the command line.
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi API script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/generated/azure/multiapi/sample
-clear-output-folder: false
-perform-load: false
-```
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: azure.multiapi.sample.v1
-output-folder: $(python-sdks-folder)/generated/azure/multiapi/sample/v1
-```
-
-### Tag: v2
-
-These settings apply only when `--tag=v2` is specified on the command line.
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: azure.multiapi.sample.v2
-output-folder: $(python-sdks-folder)/generated/azure/multiapi/sample/v2
-```
-
-### Tag: v3
-
-These settings apply only when `--tag=v2` is specified on the command line.
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: azure.multiapi.sample.v3
-output-folder: $(python-sdks-folder)/generated/azure/multiapi/sample/v3
-```
diff --git a/packages/autorest.python/tasks.py b/packages/autorest.python/tasks.py
index f5e33477a6e..8be5151c233 100644
--- a/packages/autorest.python/tasks.py
+++ b/packages/autorest.python/tasks.py
@@ -411,7 +411,6 @@ def regenerate_legacy(c, swagger_name=None, debug=False):
     regenerate_azure_legacy(c, swagger_name, debug)
     regenerate_azure_arm_legacy(c, swagger_name, debug)
     if not swagger_name:
-        regenerate_multiapi(c, debug)
         regenerate_samples(c, debug)
 
 
@@ -492,48 +491,6 @@ def test(c):
         os.chdir(f"{base_dir}/test/{autorest_type}/{gen_type}")
         c.run(cmd)
 
-    # multiapi
-    os.chdir(f"{base_dir}/test/multiapi/")
-    c.run(cmd)
-
-
-def _multiapi_command_line(location, debug):
-    cwd = os.getcwd()
-    cmd = (
-        f"autorest {M4_VERSION} {location} --use=. --multiapi --output-artifact=code-model-v4-no-tags "
-        + f"--python-sdks-folder={cwd}/test/"
-    )
-    if debug:
-        cmd += " --python.debugger"
-    return cmd
-
-
-@task
-def regenerate_multiapi(c, debug=False, swagger_name="test"):
-    # being hacky: making default swagger_name 'test', since it appears in each spec name
-    available_specifications = [
-        # create basic multiapi client (package-name=multiapi)
-        "test/multiapi/specification/multiapi/README.md",
-        # create multiapi client with submodule (package-name=multiapi#submodule)
-        "test/multiapi/specification/multiapiwithsubmodule/README.md",
-        # create multiapi client with no aio folder (package-name=multiapinoasync)
-        "test/multiapi/specification/multiapinoasync/README.md",
-        # create multiapi client with AzureKeyCredentialPolicy (package-name=multiapicredentialdefaultpolicy)
-        "test/multiapi/specification/multiapicredentialdefaultpolicy/README.md",
-        # create multiapi client data plane (package-name=multiapidataplane)
-        "test/multiapi/specification/multiapidataplane/README.md",
-        # multiapi client with custom base url (package-name=multiapicustombaseurl)
-        "test/multiapi/specification/multiapicustombaseurl/README.md",
-        # create multiapi client with security definition (package-name=multiapisecurity)
-        "test/multiapi/specification/multiapisecurity/README.md",
-        # create multiapi client with keyword only params
-        "test/multiapi/specification/multiapikeywordonly/README.md",
-    ]
-
-    cmds = [_multiapi_command_line(spec, debug) for spec in available_specifications if swagger_name.lower() in spec]
-
-    _run_autorest(cmds, debug)
-
 
 @task
 def regenerate_package_mode(c, debug=False, swagger_group=None):
@@ -592,7 +549,6 @@ def regenerate_samples(c, debug=False):
     cwd = os.getcwd()
     sample_to_special_flags = {
         "management": None,
-        "multiapi": {"multiapi": True, "python-sdks-folder": f"{cwd}/samples/specification/multiapi"},
         "azure_key_credential": None,
         "directives": None,
         "basic": None,
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/__init__.py b/packages/autorest.python/test/multiapi/AcceptanceTests/__init__.py
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/__init__.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/__init__.py
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/multiapi_base.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/multiapi_base.py
deleted file mode 100644
index 3426c5c257c..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/multiapi_base.py
+++ /dev/null
@@ -1,219 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-
-
-@pytest.fixture
-def default_client():
-    pass
-
-
-@pytest.fixture
-def client():
-    pass
-
-
-@pytest.fixture
-def namespace_models():
-    pass
-
-
-class NotTested(object):
-
-    class TestMultiapiBase(object):
-        @pytest.mark.asyncio
-        async def test_default_api_version_multiapi_client(self, default_client):
-            assert default_client.DEFAULT_API_VERSION == "3.0.0"
-            assert default_client.profile == KnownProfiles.default
-
-        @pytest.mark.asyncio
-        async def test_default_models(self, default_client):
-            default_models = default_client.models()
-            default_models.ModelThree
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                default_models.ModelOne
-
-            with pytest.raises(AttributeError):
-                default_models.ModelTwo
-
-        @pytest.mark.asyncio
-        async def test_specify_api_version_models(self, default_client):
-            v2_models = default_client.models(api_version="2.0.0")
-            v2_models.ModelTwo(id=2)
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                v2_models.ModelOne()
-
-            with pytest.raises(AttributeError):
-                v2_models.ModelThree()
-
-        @pytest.mark.asyncio
-        async def test_default_models_from_operation_group(self, default_client):
-            models = default_client.operation_group_one.models
-            models.ModelThree()
-
-            with pytest.raises(AttributeError):
-                models.ModelOne(id=1)
-
-            with pytest.raises(AttributeError):
-                models.ModelTwo(id=1)
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_specify_models_from_operation_group(self, client):
-            v1_models = client.operation_group_one.models
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                v1_models.ModelTwo(id=2)
-
-            with pytest.raises(AttributeError):
-                v1_models.ModelThree()
-
-        # OPERATION MIXINS
-        @pytest.mark.asyncio
-        async def test_default_operation_mixin(self, default_client, namespace_models):
-            response = await default_client.test_one(id=1, message=None)
-            assert response == namespace_models.ModelTwo(id=1, message="This was called with api-version 2.0.0")
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_specificy_api_version_operation_mixin(self, client):
-            response = await client.test_one(id=1, message="This is from api version One")
-            assert response is None
-
-        @pytest.mark.parametrize("api_version", ["3.0.0"])
-        @pytest.mark.asyncio
-        async def test_specify_api_version_with_no_mixin(self, client):
-            with pytest.raises(ValueError):
-                await client.test_one(id=1, message="This should throw")
-
-        # OPERATION GROUP ONE
-        @pytest.mark.asyncio
-        async def test_default_operation_group_one(self, default_client, namespace_models):
-            response = await default_client.operation_group_one.test_two()
-            assert response == namespace_models.ModelThree(optional_property="This was called with api-version 3.0.0")
-
-            with pytest.raises(AttributeError):
-                response = await client.operation_group_one.test_three()
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_version_one_operation_group_one(self, client):
-            response = await client.operation_group_one.test_two()
-            assert response is None
-
-            with pytest.raises(AttributeError):
-                response = await client.operation_group_one.test_three()
-
-        @pytest.mark.parametrize("api_version", ["2.0.0"])
-        @pytest.mark.asyncio
-        async def test_version_two_operation_group_one(self, client, namespace_models):
-            parameter = client.operation_group_one.models.ModelTwo(
-                id=1, message="This should be sent from api version 2.0.0"
-            )
-            response = await client.operation_group_one.test_two(parameter)
-            assert response == namespace_models.ModelTwo(id=1, message="This was called with api-version 2.0.0")
-
-            response = await client.operation_group_one.test_three()
-            assert response is None
-
-        # OPERATION GROUP TWO
-        @pytest.mark.asyncio
-        async def test_default_operation_group_two_test_four_json(self, default_client):
-            json_input = json.loads('{"source":"foo"}')
-            response = await default_client.operation_group_two.test_four(input=json_input)
-            assert response is None
-
-        @pytest.mark.asyncio
-        async def test_default_operation_group_two_test_four_pdf(self, default_client):
-            response = await default_client.operation_group_two.test_four(input=b"PDF", content_type="application/pdf")
-            assert response is None
-
-        @pytest.mark.asyncio
-        async def test_default_operation_group_two_test_five(self, default_client):
-            response = await default_client.operation_group_two.test_five()
-            assert response is None
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_version_one_operation_group_two_error(self, client):
-            with pytest.raises(AttributeError):
-                await client.operation_group_one.test_four()
-
-        @pytest.mark.parametrize("api_version", ["2.0.0"])
-        @pytest.mark.asyncio
-        async def test_version_two_operation_group_two(self, client):
-            response = await client.operation_group_two.test_four(parameter_one=True)
-            assert response is None
-
-            with pytest.raises(AttributeError):
-                response = await client.operation_group_two.test_five()
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_lro(self, client, namespace_models):
-            poller = await client.begin_test_lro(namespace_models.Product())
-            product = await poller.result()
-            assert product.id == 100
-
-        @pytest.mark.asyncio
-        async def test_paging(self, default_client, namespace_models):
-            pages = default_client.test_paging()
-            items = []
-            async for item in pages:
-                items.append(item)
-            assert len(items) == 2
-            assert isinstance(items[0], namespace_models.ModelThree)
-            assert items[0].optional_property == "paged"
-
-        @pytest.mark.asyncio
-        async def test_operation_group_paging(self, default_client, namespace_models):
-            pages = default_client.operation_group_one.test_operation_group_paging()
-            items = [i async for i in pages]
-            assert len(items) == 2
-            assert isinstance(items[0], namespace_models.ModelThree)
-            assert items[0].optional_property == "paged"
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        @pytest.mark.asyncio
-        async def test_lro_and_paging(self, client, namespace_models):
-            poller = await client.begin_test_lro_and_paging()
-            pager = await poller.result()
-
-            items = []
-            async for item in pager:
-                items.append(item)
-
-            assert len(items) == 1
-            assert isinstance(items[0], namespace_models.Product)
-            assert items[0].id == 100
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi.py
deleted file mode 100644
index 9a60e0d01f1..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi.py
+++ /dev/null
@@ -1,139 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-from async_generator import yield_, async_generator
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-@async_generator
-async def default_client(credential, authentication_policy):
-    from multiapi.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        await yield_(default_client)
-
-
-@pytest.fixture
-@async_generator
-async def client(credential, authentication_policy, api_version):
-    from multiapi.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        await yield_(client)
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapi import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapi.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapi/")
-
-
-def test_pipeline_client(default_client):
-    # assert the pipeline client is AsyncARMPipelineClient from azure.mgmt.core, since this is mgmt plane
-    assert type(default_client._client) == AsyncARMPipelineClient
-
-
-def test_arm_http_logging_policy_default(default_client):
-    assert isinstance(default_client._config.http_logging_policy, ARMHttpLoggingPolicy)
-    assert (
-        default_client._config.http_logging_policy.allowed_header_names
-        == ARMHttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST
-    )
-
-
-@pytest.mark.asyncio
-async def test_arm_http_logging_policy_custom(credential):
-    from multiapi.aio import MultiapiServiceClient
-
-    http_logging_policy = ARMHttpLoggingPolicy(base_url="test")
-    http_logging_policy = ARMHttpLoggingPolicy()
-    http_logging_policy.allowed_header_names.update({"x-ms-added-header"})
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, http_logging_policy=http_logging_policy
-    ) as default_client:
-        assert isinstance(default_client._config.http_logging_policy, ARMHttpLoggingPolicy)
-        assert (
-            default_client._config.http_logging_policy.allowed_header_names
-            == ARMHttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST.union({"x-ms-added-header"})
-        )
-
-
-@pytest.mark.asyncio
-async def test_credential_scopes_default(credential):
-    from multiapi.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(credential=credential) as client:
-        assert client._config.credential_scopes == ["https://management.azure.com/.default"]
-
-
-@pytest.mark.asyncio
-async def test_credential_scopes_override(credential):
-    from multiapi.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        credential=credential, credential_scopes=["http://i-should-be-the-only-credential"]
-    ) as client:
-        assert client._config.credential_scopes == ["http://i-should-be-the-only-credential"]
-
-
-@pytest.mark.parametrize("api_version", ["0.0.0"])
-@pytest.mark.asyncio
-async def test_only_operation_groups(client):
-    assert client.operation_group_one.test_two  # this is the only function it has access to.
-    with pytest.raises(ValueError):
-        # make sure it doesn't have access to the other operation group
-        client.operation_group_two
-    # check that it doesn't have access to a mixin operation
-    with pytest.raises(ValueError):
-        await client.test_one("1", "hello")
-
-
-class TestMultiapiClient(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_credential_default_policy.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_credential_default_policy.py
deleted file mode 100644
index 095ef255b8e..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_credential_default_policy.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from async_generator import yield_, async_generator
-from azure.core.pipeline.policies import AzureKeyCredentialPolicy
-from azure.core.credentials import AzureKeyCredential
-
-
-@pytest.fixture
-@async_generator
-async def default_client(credential, authentication_policy):
-    from multiapicredentialdefaultpolicy.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=AzureKeyCredential("12345")
-    ) as default_client:
-        await yield_(default_client)
-
-
-def test_multiapi_credential_default_policy_type(default_client):
-    # making sure that the authentication policy is AzureKeyCredentialPolicy
-    assert isinstance(default_client._config.authentication_policy, AzureKeyCredentialPolicy)
-    assert default_client._config.authentication_policy._name == "api-key"
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_custom_base_url.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_custom_base_url.py
deleted file mode 100644
index 6de82ae9822..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_custom_base_url.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from async_generator import yield_, async_generator
-from multiapicustombaseurl.aio import MultiapiCustomBaseUrlServiceClient
-
-
-@pytest.fixture
-@async_generator
-async def client(credential, authentication_policy, api_version):
-
-    async with MultiapiCustomBaseUrlServiceClient(
-        endpoint="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        await yield_(client)
-
-
-class TestMultiapiCustomBaseUrl(object):
-
-    @pytest.mark.parametrize("api_version", ["1.0.0"])
-    @pytest.mark.asyncio
-    async def test_custom_base_url_version_one(self, client):
-        await client.test(id=1)
-
-    @pytest.mark.parametrize("api_version", ["2.0.0"])
-    @pytest.mark.asyncio
-    async def test_custom_base_url_version_two(self, client):
-        await client.test(id=2)
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_data_plane.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_data_plane.py
deleted file mode 100644
index 885f60abc13..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_data_plane.py
+++ /dev/null
@@ -1,108 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-from async_generator import yield_, async_generator
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline.policies import HttpLoggingPolicy
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-@async_generator
-async def default_client(credential, authentication_policy):
-    from multiapidataplane.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        await yield_(default_client)
-
-
-@pytest.fixture
-@async_generator
-async def client(credential, authentication_policy, api_version):
-    from multiapidataplane.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        await yield_(client)
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapidataplane import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapidataplane.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapidataplane/")
-
-
-def test_pipeline_client(default_client):
-    # assert the pipeline client is AsyncPipelineClient from azure.core, since this is data plane
-    assert type(default_client._client) == AsyncPipelineClient
-
-
-def test_arm_http_logging_policy_default(default_client):
-    assert isinstance(default_client._config.http_logging_policy, HttpLoggingPolicy)
-    assert (
-        default_client._config.http_logging_policy.allowed_header_names == HttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST
-    )
-
-
-@pytest.mark.asyncio
-async def test_arm_http_logging_policy_custom(credential):
-    from multiapi.aio import MultiapiServiceClient
-
-    http_logging_policy = HttpLoggingPolicy(base_url="test")
-    http_logging_policy = HttpLoggingPolicy()
-    http_logging_policy.allowed_header_names.update({"x-ms-added-header"})
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, http_logging_policy=http_logging_policy
-    ) as default_client:
-        assert isinstance(default_client._config.http_logging_policy, HttpLoggingPolicy)
-        assert (
-            default_client._config.http_logging_policy.allowed_header_names
-            == HttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST.union({"x-ms-added-header"})
-        )
-
-
-class TestMultiapiClient(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_keyword_only.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_keyword_only.py
deleted file mode 100644
index 991bea06477..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_keyword_only.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from async_generator import yield_, async_generator
-from multiapikeywordonly.aio import MultiapiServiceClient
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-@async_generator
-async def client(credential, authentication_policy, api_version):
-    async with MultiapiServiceClient(
-        endpoint="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        await yield_(client)
-
-
-@pytest.fixture
-@async_generator
-async def default_client(credential, authentication_policy):
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        await yield_(default_client)
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapikeywordonly import models
-
-    return models
-
-
-class TestMultiapiClientKeywordOnly(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_security.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_security.py
deleted file mode 100644
index 7a8a99f313e..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_security.py
+++ /dev/null
@@ -1,34 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from multiapisecurity.aio import MultiapiServiceClient
-from azure.core.pipeline.policies import AsyncBearerTokenCredentialPolicy
-
-
-@pytest.mark.asyncio
-async def test_multiapi_security(credential):
-    async with MultiapiServiceClient(credential=credential) as client:
-        assert isinstance(client._config.authentication_policy, AsyncBearerTokenCredentialPolicy)
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_submodule.py b/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_submodule.py
deleted file mode 100644
index 166225f9490..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/asynctests/test_multiapi_submodule.py
+++ /dev/null
@@ -1,78 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-from async_generator import yield_, async_generator
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-@async_generator
-async def default_client(credential, authentication_policy):
-    from multiapiwithsubmodule.submodule.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        await yield_(default_client)
-
-
-@pytest.fixture
-@async_generator
-async def client(credential, authentication_policy, api_version):
-    from multiapiwithsubmodule.submodule.aio import MultiapiServiceClient
-
-    async with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        await yield_(client)
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapiwithsubmodule.submodule import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapiwithsubmodule.submodule.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapiwithsubmodule/")
-
-
-class TestMultiapiSubmodule(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/conftest.py b/packages/autorest.python/test/multiapi/AcceptanceTests/conftest.py
deleted file mode 100644
index 39147045ced..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/conftest.py
+++ /dev/null
@@ -1,74 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-
-import pytest
-import os
-import subprocess
-import signal
-import sys
-from azure.core.pipeline.policies import SansIOHTTPPolicy
-
-cwd = os.path.dirname(os.path.realpath(__file__))
-
-
-# Ideally this would be in a common helper library shared between the tests
-def start_server_process():
-    cmd = "node {}/../../../node_modules/@microsoft.azure/autorest.testserver/dist/cli/cli.js run --appendCoverage".format(
-        cwd
-    )
-    if os.name == "nt":  # On windows, subprocess creation works without being in the shell
-        return subprocess.Popen(cmd)
-
-    return subprocess.Popen(cmd, shell=True, preexec_fn=os.setsid)  # On linux, have to set shell=True
-
-
-# Ideally this would be in a common helper library shared between the tests
-def terminate_server_process(process):
-    if os.name == "nt":
-        process.kill()
-    else:
-        os.killpg(os.getpgid(process.pid), signal.SIGTERM)  # Send the signal to all the process groups
-
-
-@pytest.fixture(scope="session")
-def testserver():
-    """Start the Autorest testserver."""
-    server = start_server_process()
-    yield
-    terminate_server_process(server)
-
-
-@pytest.fixture
-def credential():
-    class FakeCredential:
-        pass
-
-    return FakeCredential()
-
-
-@pytest.fixture
-def authentication_policy():
-    return SansIOHTTPPolicy()
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/multiapi_base.py b/packages/autorest.python/test/multiapi/AcceptanceTests/multiapi_base.py
deleted file mode 100644
index cd597e83662..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/multiapi_base.py
+++ /dev/null
@@ -1,194 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-
-
-@pytest.fixture
-def default_client():
-    pass
-
-
-@pytest.fixture
-def client():
-    pass
-
-
-@pytest.fixture
-def namespace_models():
-    pass
-
-
-class NotTested(object):
-
-    class TestMultiapiBase(object):
-        def test_default_api_version_multiapi_client(self, default_client):
-            assert default_client.DEFAULT_API_VERSION == "3.0.0"
-            assert default_client.profile == KnownProfiles.default
-
-        def test_default_models(self, default_client):
-            default_models = default_client.models()
-            default_models.ModelThree
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                default_models.ModelOne
-
-            with pytest.raises(AttributeError):
-                default_models.ModelTwo
-
-        def test_specify_api_version_models(self, default_client):
-            v2_models = default_client.models(api_version="2.0.0")
-            v2_models.ModelTwo(id=2)
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                v2_models.ModelOne()
-
-            with pytest.raises(AttributeError):
-                v2_models.ModelThree()
-
-        def test_default_models_from_operation_group(self, default_client):
-            models = default_client.operation_group_one.models
-            models.ModelThree()
-
-            with pytest.raises(AttributeError):
-                models.ModelOne(id=1)
-
-            with pytest.raises(AttributeError):
-                models.ModelTwo(id=1)
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_specify_models_from_operation_group(self, client):
-            v1_models = client.operation_group_one.models
-
-            # check the models from the other api versions can't be accessed
-            with pytest.raises(AttributeError):
-                v1_models.ModelTwo(id=2)
-
-            with pytest.raises(AttributeError):
-                v1_models.ModelThree()
-
-        # OPERATION MIXINS
-        def test_default_operation_mixin(self, default_client, namespace_models):
-            response = default_client.test_one(id=1, message=None)
-            assert response == namespace_models.ModelTwo(id=1, message="This was called with api-version 2.0.0")
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_specificy_api_version_operation_mixin(self, client):
-            response = client.test_one(id=1, message="This is from api version One")
-            assert response is None
-
-        @pytest.mark.parametrize("api_version", ["3.0.0"])
-        def test_specify_api_version_with_no_mixin(self, client):
-            with pytest.raises(ValueError):
-                client.test_one(id=1, message="This should throw")
-
-        # OPERATION GROUP ONE
-        def test_default_operation_group_one(self, default_client, namespace_models):
-            response = default_client.operation_group_one.test_two()
-            assert response == namespace_models.ModelThree(optional_property="This was called with api-version 3.0.0")
-
-            with pytest.raises(AttributeError):
-                response = client.operation_group_one.test_three()
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_version_one_operation_group_one(self, client):
-            response = client.operation_group_one.test_two()
-            assert response is None
-
-            with pytest.raises(AttributeError):
-                response = client.operation_group_one.test_three()
-
-        @pytest.mark.parametrize("api_version", ["2.0.0"])
-        def test_version_two_operation_group_one(self, client, namespace_models):
-            parameter = client.operation_group_one.models.ModelTwo(
-                id=1, message="This should be sent from api version 2.0.0"
-            )
-            response = client.operation_group_one.test_two(parameter)
-            assert response == namespace_models.ModelTwo(id=1, message="This was called with api-version 2.0.0")
-
-            response = client.operation_group_one.test_three()
-            assert response is None
-
-        # OPERATION GROUP TWO
-        def test_default_operation_group_two_test_four_json(self, default_client):
-            json_input = json.loads('{"source":"foo"}')
-            response = default_client.operation_group_two.test_four(input=json_input)
-            assert response is None
-
-        def test_default_operation_group_two_test_four_pdf(self, default_client):
-            response = default_client.operation_group_two.test_four(input=b"PDF", content_type="application/pdf")
-            assert response is None
-
-        def test_default_operation_group_two_test_five(self, default_client):
-            response = default_client.operation_group_two.test_five()
-            assert response is None
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_version_one_operation_group_two_error(self, client):
-            with pytest.raises(AttributeError):
-                client.operation_group_one.test_four()
-
-        @pytest.mark.parametrize("api_version", ["2.0.0"])
-        def test_version_two_operation_group_two(self, client):
-            response = client.operation_group_two.test_four(parameter_one=True)
-            assert response is None
-
-            with pytest.raises(AttributeError):
-                response = client.operation_group_two.test_five()
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_lro(self, client, namespace_models):
-            product = client.begin_test_lro(namespace_models.Product()).result()
-            assert product.id == 100
-
-        def test_paging(self, default_client, namespace_models):
-            pages = default_client.test_paging()
-            items = [i for i in pages]
-            assert len(items) == 2
-            assert isinstance(items[0], namespace_models.ModelThree)
-            assert items[0].optional_property == "paged"
-
-        def test_operation_group_paging(self, default_client, namespace_models):
-            pages = default_client.operation_group_one.test_operation_group_paging()
-            items = [i for i in pages]
-            assert len(items) == 2
-            assert isinstance(items[0], namespace_models.ModelThree)
-            assert items[0].optional_property == "paged"
-
-        @pytest.mark.parametrize("api_version", ["1.0.0"])
-        def test_lro_and_paging(self, client, namespace_models):
-            poller = client.begin_test_lro_and_paging()
-            pager = poller.result()
-
-            items = list(pager)
-
-            assert len(items) == 1
-            assert isinstance(items[0], namespace_models.Product)
-            assert items[0].id == 100
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi.py
deleted file mode 100644
index 20ab21431d6..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi.py
+++ /dev/null
@@ -1,136 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-import inspect
-import json
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy
-from azure.profiles import KnownProfiles
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-def default_client(credential, authentication_policy):
-    from multiapi import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        yield default_client
-
-
-@pytest.fixture
-def client(credential, authentication_policy, api_version):
-    from multiapi import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        yield client
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapi import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapi.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapi/")
-
-
-def test_patch_file():
-    from multiapi.models import PatchAddedModel
-
-
-def test_pipeline_client(default_client):
-    # assert the pipeline client is ARMPipelineClient from azure.mgmt.core, since this is mgmt plane
-    assert type(default_client._client) == ARMPipelineClient
-
-
-def test_arm_http_logging_policy_default(default_client):
-    assert isinstance(default_client._config.http_logging_policy, ARMHttpLoggingPolicy)
-    assert (
-        default_client._config.http_logging_policy.allowed_header_names
-        == ARMHttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST
-    )
-
-
-def test_arm_http_logging_policy_custom(credential):
-    from multiapi import MultiapiServiceClient
-
-    http_logging_policy = ARMHttpLoggingPolicy(base_url="test")
-    http_logging_policy = ARMHttpLoggingPolicy()
-    http_logging_policy.allowed_header_names.update({"x-ms-added-header"})
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, http_logging_policy=http_logging_policy
-    ) as default_client:
-        assert isinstance(default_client._config.http_logging_policy, ARMHttpLoggingPolicy)
-        assert (
-            default_client._config.http_logging_policy.allowed_header_names
-            == ARMHttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST.union({"x-ms-added-header"})
-        )
-
-
-def test_credential_scopes_default(credential):
-    from multiapi import MultiapiServiceClient
-
-    with MultiapiServiceClient(credential=credential) as client:
-        assert client._config.credential_scopes == ["https://management.azure.com/.default"]
-
-
-def test_credential_scopes_override(credential):
-    from multiapi import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        credential=credential, credential_scopes=["http://i-should-be-the-only-credential"]
-    ) as client:
-        assert client._config.credential_scopes == ["http://i-should-be-the-only-credential"]
-
-
-@pytest.mark.parametrize("api_version", ["0.0.0"])
-def test_only_operation_groups(client):
-    assert client.operation_group_one.test_two  # this is the only function it has access to.
-    with pytest.raises(ValueError):
-        # make sure it doesn't have access to the other operation group
-        client.operation_group_two
-    # check that it doesn't have access to a mixin operation
-    with pytest.raises(ValueError):
-        client.test_one("1", "hello")
-
-
-class TestMultiapiClient(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_credential_default_policy.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_credential_default_policy.py
deleted file mode 100644
index 8df9624e1c5..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_credential_default_policy.py
+++ /dev/null
@@ -1,44 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from azure.core.pipeline.policies import AzureKeyCredentialPolicy
-from azure.core.credentials import AzureKeyCredential
-
-
-@pytest.fixture
-def default_client(authentication_policy):
-    from multiapicredentialdefaultpolicy import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=AzureKeyCredential("12345")
-    ) as default_client:
-        yield default_client
-
-
-def test_multiapi_credential_default_policy_type(default_client):
-    # making sure that the authentication policy is AzureKeyCredentialPolicy
-    assert isinstance(default_client._config.authentication_policy, AzureKeyCredentialPolicy)
-    assert default_client._config.authentication_policy._name == "api-key"
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_custom_base_url.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_custom_base_url.py
deleted file mode 100644
index 25cda644f14..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_custom_base_url.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from multiapicustombaseurl import MultiapiCustomBaseUrlServiceClient
-
-
-@pytest.fixture
-def client(credential, authentication_policy, api_version):
-
-    with MultiapiCustomBaseUrlServiceClient(
-        endpoint="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        yield client
-
-
-class TestMultiapiCustomBaseUrl(object):
-
-    @pytest.mark.parametrize("api_version", ["1.0.0"])
-    def test_custom_base_url_version_one(self, client):
-        client.test(id=1)
-
-    @pytest.mark.parametrize("api_version", ["2.0.0"])
-    def test_custom_base_url_version_two(self, client):
-        client.test(id=2)
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_data_plane.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_data_plane.py
deleted file mode 100644
index 1780fa81a14..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_data_plane.py
+++ /dev/null
@@ -1,104 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-from azure.core import PipelineClient
-from azure.core.pipeline.policies import HttpLoggingPolicy
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-def default_client(credential, authentication_policy):
-    from multiapidataplane import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        yield default_client
-
-
-@pytest.fixture
-def client(credential, authentication_policy, api_version):
-    from multiapidataplane import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        yield client
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapidataplane import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapidataplane.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapidataplane/")
-
-
-def test_pipeline_client(default_client):
-    # assert the pipeline client is PipelineClient from azure.core, since this is data plane
-    assert type(default_client._client) == PipelineClient
-
-
-def test_arm_http_logging_policy_default(default_client):
-    assert isinstance(default_client._config.http_logging_policy, HttpLoggingPolicy)
-    assert (
-        default_client._config.http_logging_policy.allowed_header_names == HttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST
-    )
-
-
-def test_arm_http_logging_policy_custom(credential):
-    from multiapi import MultiapiServiceClient
-
-    http_logging_policy = HttpLoggingPolicy(base_url="test")
-    http_logging_policy = HttpLoggingPolicy()
-    http_logging_policy.allowed_header_names.update({"x-ms-added-header"})
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, http_logging_policy=http_logging_policy
-    ) as default_client:
-        assert isinstance(default_client._config.http_logging_policy, HttpLoggingPolicy)
-        assert (
-            default_client._config.http_logging_policy.allowed_header_names
-            == HttpLoggingPolicy.DEFAULT_HEADERS_WHITELIST.union({"x-ms-added-header"})
-        )
-
-
-class TestMultiapiClient(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_keyword_only.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_keyword_only.py
deleted file mode 100644
index 65fca79550c..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_keyword_only.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-from multiapikeywordonly import MultiapiServiceClient
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-def default_client(credential, authentication_policy):
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        yield default_client
-
-
-@pytest.fixture
-def client(credential, authentication_policy, api_version):
-    with MultiapiServiceClient(
-        endpoint="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        yield client
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapikeywordonly import models
-
-    return models
-
-
-class TestMultiapiClientKeywordOnly(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_no_async.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_no_async.py
deleted file mode 100644
index 2781b96deb7..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_no_async.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-
-
-def test_multiapi_no_async():
-    # making sure that there is no aio folder
-    with pytest.raises(ImportError):
-        import multiapinoasync.aio
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_security.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_security.py
deleted file mode 100644
index 3bd89514177..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_security.py
+++ /dev/null
@@ -1,32 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-from multiapisecurity import MultiapiServiceClient
-from azure.core.pipeline.policies import BearerTokenCredentialPolicy
-
-
-def test_multiapi_security(credential):
-    with MultiapiServiceClient(credential=credential) as client:
-        assert isinstance(client._config.authentication_policy, BearerTokenCredentialPolicy)
diff --git a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_submodule.py b/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_submodule.py
deleted file mode 100644
index 2bb1ef36f67..00000000000
--- a/packages/autorest.python/test/multiapi/AcceptanceTests/test_multiapi_submodule.py
+++ /dev/null
@@ -1,75 +0,0 @@
-# --------------------------------------------------------------------------
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# The MIT License (MIT)
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the ""Software""), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-# IN THE SOFTWARE.
-#
-# --------------------------------------------------------------------------
-import pytest
-import inspect
-import json
-from azure.profiles import KnownProfiles
-
-from .multiapi_base import NotTested
-
-
-@pytest.fixture
-def default_client(credential, authentication_policy):
-    from multiapiwithsubmodule.submodule import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000", credential=credential, authentication_policy=authentication_policy
-    ) as default_client:
-        yield default_client
-
-
-@pytest.fixture
-def client(credential, authentication_policy, api_version):
-    from multiapiwithsubmodule.submodule import MultiapiServiceClient
-
-    with MultiapiServiceClient(
-        base_url="http://localhost:3000",
-        api_version=api_version,
-        credential=credential,
-        authentication_policy=authentication_policy,
-    ) as client:
-        yield client
-
-
-@pytest.fixture
-def namespace_models():
-    from multiapiwithsubmodule.submodule import models
-
-    return models
-
-
-@pytest.mark.parametrize("api_version", ["2.0.0"])
-def test_specify_api_version_multiapi_client(client):
-    assert client.profile.label == "multiapiwithsubmodule.submodule.MultiapiServiceClient 2.0.0"
-
-
-def test_configuration_kwargs(default_client):
-    # making sure that the package name is correct in the sdk moniker
-    assert default_client._config.user_agent_policy._user_agent.startswith("azsdk-python-multiapiwithsubmodule/")
-
-
-class TestMultiapiSubmodule(NotTested.TestMultiapiBase):
-    pass
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_configuration.py
deleted file mode 100644
index 6e66c43d533..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapi/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_multiapi_service_client.py
deleted file mode 100644
index e0eeede2a96..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_multiapi_service_client.py
+++ /dev/null
@@ -1,190 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapi.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles=KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 0.0.0: :mod:`v0.models<multiapi.v0.models>`
-           * 1.0.0: :mod:`v1.models<multiapi.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapi.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapi.v3.models>`
-        """
-        if api_version == '0.0.0':
-            from .v0 import models
-            return models
-        elif api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 0.0.0: :class:`OperationGroupOneOperations<multiapi.v0.operations.OperationGroupOneOperations>`
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapi.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapi.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapi.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '0.0.0':
-            from .v0.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapi.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapi.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_operations_mixin.py
deleted file mode 100644
index 1ed4a98fa5a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_operations_mixin.py
+++ /dev/null
@@ -1,174 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapi.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapi.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_patch.py
deleted file mode 100644
index 2d736d0062b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_patch.py
+++ /dev/null
@@ -1,12 +0,0 @@
-import importlib
-import sys
-
-class PatchAddedModel(object):
-    pass
-
-def patch_sdk():
-    try:
-        models = sys.modules['multiapi.models']
-    except KeyError:
-        models = importlib.import_module('multiapi.models')
-    setattr(models, 'PatchAddedModel', PatchAddedModel)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_configuration.py
deleted file mode 100644
index 159ed7f01ec..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapi/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_multiapi_service_client.py
deleted file mode 100644
index b27fa231e72..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,190 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapi.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles = KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 0.0.0: :mod:`v0.models<multiapi.v0.models>`
-           * 1.0.0: :mod:`v1.models<multiapi.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapi.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapi.v3.models>`
-        """
-        if api_version == '0.0.0':
-            from ..v0 import models
-            return models
-        elif api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 0.0.0: :class:`OperationGroupOneOperations<multiapi.v0.aio.operations.OperationGroupOneOperations>`
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapi.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapi.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapi.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '0.0.0':
-            from ..v0.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapi.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapi.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_operations_mixin.py
deleted file mode 100644
index 9dc194b626c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/aio/_operations_mixin.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapi.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapi.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_configuration.py
deleted file mode 100644
index 3c5db2244bc..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "0.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_metadata.json
deleted file mode 100644
index 4c597cdbb6d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_metadata.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-    "chosen_version": "0.0.0",
-    "total_api_version_list": ["0.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_multiapi_service_client.py
deleted file mode 100644
index 94de023fca5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_multiapi_service_client.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient:
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v0.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "0.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_configuration.py
deleted file mode 100644
index 6efa481e738..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "0.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_multiapi_service_client.py
deleted file mode 100644
index 66261a5351a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,126 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient:
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v0.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "0.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/__init__.py
deleted file mode 100644
index f8443c0f5fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/__init__.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 75ce9a0d60a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,97 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v0.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "0.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/__init__.py
deleted file mode 100644
index 513632adef7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/__init__.py
+++ /dev/null
@@ -1,31 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_models_py3.py
deleted file mode 100644
index 6e2a859e193..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_models_py3.py
+++ /dev/null
@@ -1,88 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapi.v0.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapi.v0.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/__init__.py
deleted file mode 100644
index f8443c0f5fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/__init__.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_operation_group_one_operations.py
deleted file mode 100644
index 672f67d7d85..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "0.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v0.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "0.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_configuration.py
deleted file mode 100644
index 8852910814a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_metadata.json
deleted file mode 100644
index af654e34811..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_metadata.json
+++ /dev/null
@@ -1,196 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapi.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapi.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapi.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapi.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapi.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapi.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapi.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapi.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_multiapi_service_client.py
deleted file mode 100644
index 52cee4f2df6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,124 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_configuration.py
deleted file mode 100644
index 446b6d6e027..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index 1411ad1f97b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,128 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 35848887e41..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,497 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.async_arm_polling import AsyncARMPolling
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapi.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapi.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapi.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 6ef6155be1d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,97 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_models_py3.py
deleted file mode 100644
index d0122abf511..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapi.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapi.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8ac74a2838b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,575 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.arm_polling import ARMPolling
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapi.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapi.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapi.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapi.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapi.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 336a26cf3a0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_configuration.py
deleted file mode 100644
index 5d5658e049d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_metadata.json
deleted file mode 100644
index 4c00eacec42..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapi.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapi.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_multiapi_service_client.py
deleted file mode 100644
index ed5aeb27d4b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapi.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_configuration.py
deleted file mode 100644
index 485a08a8b2b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index acd93f00f30..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,131 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapi.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8ad132c6d9e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,153 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index daa3735c2b4..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,199 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapi.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapi.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 179599b9f42..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index f74c2f36fd9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index bdb517eb316..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,242 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapi.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapi.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapi.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index f03a0a1b7e8..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_configuration.py
deleted file mode 100644
index eaadbbce068..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_metadata.json
deleted file mode 100644
index 6e4162d92b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapi.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapi.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_multiapi_service_client.py
deleted file mode 100644
index 9a8070aca81..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapi.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_configuration.py
deleted file mode 100644
index 8aa5c262db3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapi/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 270223a2288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,131 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapi.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapi.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 2220a85bc50..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,181 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 23e58c17f4f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,236 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapi.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapi.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 8b6cdb87fbb..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,194 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapi.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapi.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_models_py3.py
deleted file mode 100644
index 8b85d248505..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapi.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapi.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 333abf6b245..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index 1a19641e3c0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,270 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapi.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapi.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapi.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapi.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index a6b99e5431d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,239 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapi.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapi.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapi.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/setup.py
deleted file mode 100644
index 56b1c25baf0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/Multiapi/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapi"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapi",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapi"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_configuration.py
deleted file mode 100644
index d4e9a20fd1b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    """
-
-    def __init__(
-        self,
-        credential: AzureKeyCredential,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        kwargs.setdefault('sdk_moniker', 'multiapicredentialdefaultpolicy/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_multiapi_service_client.py
deleted file mode 100644
index b9defc6b9d1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_multiapi_service_client.py
+++ /dev/null
@@ -1,168 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapicredentialdefaultpolicy.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: AzureKeyCredential,
-        api_version: Optional[str]=None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles=KnownProfiles.default,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapicredentialdefaultpolicy.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapicredentialdefaultpolicy.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapicredentialdefaultpolicy.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapicredentialdefaultpolicy.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapicredentialdefaultpolicy.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_operations_mixin.py
deleted file mode 100644
index 1e8105df0c0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_operations_mixin.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_configuration.py
deleted file mode 100644
index 9a6f174b74f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    """
-
-    def __init__(
-        self,
-        credential: AzureKeyCredential,
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        kwargs.setdefault('sdk_moniker', 'multiapicredentialdefaultpolicy/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_multiapi_service_client.py
deleted file mode 100644
index be89cf52aa4..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,168 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapicredentialdefaultpolicy.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: AzureKeyCredential,
-        api_version: Optional[str] = None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles = KnownProfiles.default,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapicredentialdefaultpolicy.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapicredentialdefaultpolicy.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapicredentialdefaultpolicy.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapicredentialdefaultpolicy.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapicredentialdefaultpolicy.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapicredentialdefaultpolicy.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_operations_mixin.py
deleted file mode 100644
index 6ca5d0023c9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/aio/_operations_mixin.py
+++ /dev/null
@@ -1,177 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_configuration.py
deleted file mode 100644
index b056908954f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_metadata.json
deleted file mode 100644
index cd62880bba7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_metadata.json
+++ /dev/null
@@ -1,183 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": null,
-        "credential_call_sync": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "credential_call_async": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_multiapi_service_client.py
deleted file mode 100644
index 8c8a19a185a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,103 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_configuration.py
deleted file mode 100644
index 93a419f2b6e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index 2a1eb9062fc..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index ac3fd628141..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,498 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.async_arm_polling import AsyncARMPolling
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index d02864e2d8e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,97 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_models_py3.py
deleted file mode 100644
index 95e9ce2e471..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapicredentialdefaultpolicy.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 49ef77c6fe2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,576 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.arm_polling import ARMPolling
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapicredentialdefaultpolicy.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapicredentialdefaultpolicy.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapicredentialdefaultpolicy.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 4a70e11a52e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_configuration.py
deleted file mode 100644
index 6a2ff55d40b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_metadata.json
deleted file mode 100644
index 38c86d0ecb7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": null,
-        "credential_call_sync": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "credential_call_async": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_multiapi_service_client.py
deleted file mode 100644
index af735bdd9ef..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,107 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapicredentialdefaultpolicy.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_configuration.py
deleted file mode 100644
index 2e5ff4e7fec..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index 5898a8c279c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapicredentialdefaultpolicy.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 14c9a02a560..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,153 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 26b78b905ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,199 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index f86912ce017..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index f1c9b356679..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 94bd791a2d1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,242 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index 0583563c8e9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_configuration.py
deleted file mode 100644
index b5b17398260..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_metadata.json
deleted file mode 100644
index 480f69873b7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: AzureKeyCredential,",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.AzureKeyCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": null,
-        "credential_call_sync": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "credential_call_async": "policies.AzureKeyCredentialPolicy(self.credential, \"api-key\", **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.credentials\": [\"AzureKeyCredential\"]}}, \"typing\": {\"sdkcore\": {\"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype:\n ~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_multiapi_service_client.py
deleted file mode 100644
index 3fed6cc3364..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,107 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapicredentialdefaultpolicy.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_configuration.py
deleted file mode 100644
index 33323d31e41..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_configuration.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: AzureKeyCredential, cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        kwargs.setdefault("sdk_moniker", "multiapicredentialdefaultpolicy/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AzureKeyCredentialPolicy(self.credential, "api-key", **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 08ca269f5b0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable
-from typing_extensions import Self
-
-from azure.core.credentials import AzureKeyCredential
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapicredentialdefaultpolicy.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapicredentialdefaultpolicy.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.AzureKeyCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: AzureKeyCredential, base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, cloud_setting=cloud_setting, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index bd6949a090d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,182 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index f9eba0b6877..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,237 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 07a3bbe6a55..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,194 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapicredentialdefaultpolicy.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapicredentialdefaultpolicy.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_models_py3.py
deleted file mode 100644
index 28c7bea759a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index fd547820ca5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index b1fa726e075..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,270 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapicredentialdefaultpolicy.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapicredentialdefaultpolicy.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapicredentialdefaultpolicy.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index 6501e7cd15b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,239 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapicredentialdefaultpolicy.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapicredentialdefaultpolicy.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapicredentialdefaultpolicy.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/setup.py
deleted file mode 100644
index 2d4cdb23283..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapicredentialdefaultpolicy"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapi with a non BearerTokenCredentialPolicy auth policy",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapicredentialdefaultpolicy"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/__init__.py
deleted file mode 100644
index 9fe451b37a1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient
-__all__ = ['MultiapiCustomBaseUrlServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_configuration.py
deleted file mode 100644
index a09079b016f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_configuration.py
+++ /dev/null
@@ -1,67 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        endpoint: str,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapicustombaseurl/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index d519aa1a6a3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,130 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from ._operations_mixin import MultiapiCustomBaseUrlServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi custom base url testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    """
-
-    DEFAULT_API_VERSION = '2.0.0'
-    _PROFILE_TAG = "multiapicustombaseurl.MultiapiCustomBaseUrlServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        endpoint: str,
-        api_version: Optional[str]=None,
-        profile: KnownProfiles=KnownProfiles.default,
-        **kwargs: Any
-    ):
-        if api_version == '1.0.0':
-            base_url = '{Endpoint}/multiapiCustomBaseUrl/v1'
-        elif api_version == '2.0.0':
-            base_url = '{Endpoint}/multiapiCustomBaseUrl/v2'
-        else:
-            raise ValueError("API version {} is not available".format(api_version))
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(credential, endpoint, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiCustomBaseUrlServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapicustombaseurl.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapicustombaseurl.v2.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_operations_mixin.py
deleted file mode 100644
index 5ae5052297e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_operations_mixin.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from typing import Any
-
-from . import models as _models
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(object):
-
-    def test(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        **kwargs: Any
-    ) -> None:
-        """Should be a mixin operation. Put in 2 for the required parameter and have the correct api
-        version of 2.0.0 to pass.
-
-        :param id: An int parameter. Put in 2 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiCustomBaseUrlServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiCustomBaseUrlServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test(id, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/__init__.py
deleted file mode 100644
index 25fe821f2ff..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient
-__all__ = ['MultiapiCustomBaseUrlServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_configuration.py
deleted file mode 100644
index e39bfa52e9d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_configuration.py
+++ /dev/null
@@ -1,67 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        endpoint: str,
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapicustombaseurl/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index a1c6a473a44..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,130 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from ._operations_mixin import MultiapiCustomBaseUrlServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi custom base url testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    """
-
-    DEFAULT_API_VERSION = '2.0.0'
-    _PROFILE_TAG = "multiapicustombaseurl.MultiapiCustomBaseUrlServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        endpoint: str,
-        api_version: Optional[str] = None,
-        profile: KnownProfiles = KnownProfiles.default,
-        **kwargs: Any
-    ) -> None:
-        if api_version == '1.0.0':
-            base_url = '{Endpoint}/multiapiCustomBaseUrl/v1'
-        elif api_version == '2.0.0':
-            base_url = '{Endpoint}/multiapiCustomBaseUrl/v2'
-        else:
-            raise ValueError("API version {} is not available".format(api_version))
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(credential, endpoint, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiCustomBaseUrlServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapicustombaseurl.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapicustombaseurl.v2.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_operations_mixin.py
deleted file mode 100644
index f62c3446472..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/aio/_operations_mixin.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from typing import Any
-
-from .. import models as _models
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(object):
-
-    async def test(
-        self,
-        id: int,
-        **kwargs: Any
-    ) -> None:
-        """Should be a mixin operation. Put in 2 for the required parameter and have the correct api
-        version of 2.0.0 to pass.
-
-        :param id: An int parameter. Put in 2 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiCustomBaseUrlServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiCustomBaseUrlServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test(id, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/models.py
deleted file mode 100644
index c2db974ac20..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/models.py
+++ /dev/null
@@ -1,7 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v2.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/__init__.py
deleted file mode 100644
index ccc133e71e1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_configuration.py
deleted file mode 100644
index e88c1c6d7af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes,name-too-long
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", endpoint: str, **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapicustombaseurl/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_metadata.json
deleted file mode 100644
index 2475f3d9fcf..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_metadata.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiCustomBaseUrlServiceClient",
-        "filename": "_multiapi_custom_base_url_service_client",
-        "description": "Service client for multiapi custom base url testing.",
-        "host_value": null,
-        "parameterized_host_template": "\u0027{Endpoint}/multiapiCustomBaseUrl/v1\u0027",
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiCustomBaseUrlServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiCustomBaseUrlServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiCustomBaseUrlServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiCustomBaseUrlServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "endpoint": {
-                "signature": "endpoint: str,",
-                "description": "Pass in https://localhost:3000. Required.",
-                "docstring_type": "str",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "endpoint": {
-                "signature": "endpoint: str,",
-                "description": "Pass in https://localhost:3000. Required.",
-                "docstring_type": "str",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, endpoint",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test" : {
-                "sync": {
-                    "signature": "def test(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Should be a mixin operation. Put in 1 for the required parameter and have the correct api\nversion of 1.0.0 to pass.\n\n:param id: An int parameter. Put in 1 to pass. Required.\n:type id: int\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test(\n    self,\n    id: int,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Should be a mixin operation. Put in 1 for the required parameter and have the correct api\nversion of 1.0.0 to pass.\n\n:param id: An int parameter. Put in 1 to pass. Required.\n:type id: int\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index 8970a6b34a3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiCustomBaseUrlServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin):
-    """Service client for multiapi custom base url testing.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", endpoint: str, **kwargs: Any) -> None:
-        _endpoint = "{Endpoint}/multiapiCustomBaseUrl/v1"
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(
-            credential=credential, endpoint=endpoint, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=_endpoint, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-
-        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/__init__.py
deleted file mode 100644
index ccc133e71e1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_configuration.py
deleted file mode 100644
index 9915f2c2e2e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes,name-too-long
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", endpoint: str, **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapicustombaseurl/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index 4a6b13782d6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,104 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from .operations import MultiapiCustomBaseUrlServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin):
-    """Service client for multiapi custom base url testing.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", endpoint: str, **kwargs: Any) -> None:
-        _endpoint = "{Endpoint}/multiapiCustomBaseUrl/v1"
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(
-            credential=credential, endpoint=endpoint, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=_endpoint, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-
-        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/__init__.py
deleted file mode 100644
index fcfeaddc7e6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client_operations import MultiapiCustomBaseUrlServiceClientOperationsMixin  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClientOperationsMixin",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_multiapi_custom_base_url_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_multiapi_custom_base_url_service_client_operations.py
deleted file mode 100644
index 3927324a634..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_multiapi_custom_base_url_service_client_operations.py
+++ /dev/null
@@ -1,93 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_custom_base_url_service_client_operations import build_test_request
-from .._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(  # pylint: disable=name-too-long
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiCustomBaseUrlServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test(self, id: int, **kwargs: Any) -> None:
-        """Should be a mixin operation. Put in 1 for the required parameter and have the correct api
-        version of 1.0.0 to pass.
-
-        :param id: An int parameter. Put in 1 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version("test") or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_request(
-            id=id,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-        _request.url = self._client.format_url(_request.url, **path_format_arguments)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/__init__.py
deleted file mode 100644
index 187235acc3a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_models_py3.py
deleted file mode 100644
index 109cf147510..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_models_py3.py
+++ /dev/null
@@ -1,37 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/__init__.py
deleted file mode 100644
index fcfeaddc7e6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/__init__.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client_operations import MultiapiCustomBaseUrlServiceClientOperationsMixin  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClientOperationsMixin",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_multiapi_custom_base_url_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_multiapi_custom_base_url_service_client_operations.py
deleted file mode 100644
index ef33dcc2922..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_multiapi_custom_base_url_service_client_operations.py
+++ /dev/null
@@ -1,115 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_request(*, id: int, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/test")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(  # pylint: disable=name-too-long
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiCustomBaseUrlServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test(self, id: int, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """Should be a mixin operation. Put in 1 for the required parameter and have the correct api
-        version of 1.0.0 to pass.
-
-        :param id: An int parameter. Put in 1 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version("test") or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_request(
-            id=id,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-        _request.url = self._client.format_url(_request.url, **path_format_arguments)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/__init__.py
deleted file mode 100644
index ccc133e71e1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_configuration.py
deleted file mode 100644
index 5f2904887f8..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes,name-too-long
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", endpoint: str, **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapicustombaseurl/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_metadata.json
deleted file mode 100644
index e506cdc6fa6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_metadata.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiCustomBaseUrlServiceClient",
-        "filename": "_multiapi_custom_base_url_service_client",
-        "description": "Service client for multiapi custom base url testing.",
-        "host_value": null,
-        "parameterized_host_template": "\u0027{Endpoint}/multiapiCustomBaseUrl/v2\u0027",
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiCustomBaseUrlServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiCustomBaseUrlServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiCustomBaseUrlServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiCustomBaseUrlServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "endpoint": {
-                "signature": "endpoint: str,",
-                "description": "Pass in https://localhost:3000. Required.",
-                "docstring_type": "str",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "endpoint": {
-                "signature": "endpoint: str,",
-                "description": "Pass in https://localhost:3000. Required.",
-                "docstring_type": "str",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, endpoint",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test" : {
-                "sync": {
-                    "signature": "def test(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Should be a mixin operation. Put in 2 for the required parameter and have the correct api\nversion of 2.0.0 to pass.\n\n:param id: An int parameter. Put in 2 to pass. Required.\n:type id: int\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test(\n    self,\n    id: int,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Should be a mixin operation. Put in 2 for the required parameter and have the correct api\nversion of 2.0.0 to pass.\n\n:param id: An int parameter. Put in 2 to pass. Required.\n:type id: int\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index 1cb53590dac..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiCustomBaseUrlServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin):
-    """Service client for multiapi custom base url testing.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", endpoint: str, **kwargs: Any) -> None:
-        _endpoint = "{Endpoint}/multiapiCustomBaseUrl/v2"
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(
-            credential=credential, endpoint=endpoint, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=_endpoint, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-
-        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/__init__.py
deleted file mode 100644
index ccc133e71e1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client import MultiapiCustomBaseUrlServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_configuration.py
deleted file mode 100644
index 0bdd1c9cfd0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiCustomBaseUrlServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes,name-too-long
-    """Configuration for MultiapiCustomBaseUrlServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", endpoint: str, **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-        if endpoint is None:
-            raise ValueError("Parameter 'endpoint' must not be None.")
-
-        self.credential = credential
-        self.endpoint = endpoint
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapicustombaseurl/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_multiapi_custom_base_url_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_multiapi_custom_base_url_service_client.py
deleted file mode 100644
index ba7da225ed5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_multiapi_custom_base_url_service_client.py
+++ /dev/null
@@ -1,104 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from .operations import MultiapiCustomBaseUrlServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiCustomBaseUrlServiceClient(MultiapiCustomBaseUrlServiceClientOperationsMixin):
-    """Service client for multiapi custom base url testing.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param endpoint: Pass in https://localhost:3000. Required.
-    :type endpoint: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", endpoint: str, **kwargs: Any) -> None:
-        _endpoint = "{Endpoint}/multiapiCustomBaseUrl/v2"
-        self._config = MultiapiCustomBaseUrlServiceClientConfiguration(
-            credential=credential, endpoint=endpoint, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=_endpoint, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-
-        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/__init__.py
deleted file mode 100644
index fcfeaddc7e6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client_operations import MultiapiCustomBaseUrlServiceClientOperationsMixin  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClientOperationsMixin",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_multiapi_custom_base_url_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_multiapi_custom_base_url_service_client_operations.py
deleted file mode 100644
index f9d8101f893..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_multiapi_custom_base_url_service_client_operations.py
+++ /dev/null
@@ -1,93 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_custom_base_url_service_client_operations import build_test_request
-from .._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(  # pylint: disable=name-too-long
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiCustomBaseUrlServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test(self, id: int, **kwargs: Any) -> None:
-        """Should be a mixin operation. Put in 2 for the required parameter and have the correct api
-        version of 2.0.0 to pass.
-
-        :param id: An int parameter. Put in 2 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version("test") or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_request(
-            id=id,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-        _request.url = self._client.format_url(_request.url, **path_format_arguments)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/__init__.py
deleted file mode 100644
index 187235acc3a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_models_py3.py
deleted file mode 100644
index 109cf147510..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_models_py3.py
+++ /dev/null
@@ -1,37 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/__init__.py
deleted file mode 100644
index fcfeaddc7e6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/__init__.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_custom_base_url_service_client_operations import MultiapiCustomBaseUrlServiceClientOperationsMixin  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiCustomBaseUrlServiceClientOperationsMixin",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_multiapi_custom_base_url_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_multiapi_custom_base_url_service_client_operations.py
deleted file mode 100644
index 25cfe1ae31b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_multiapi_custom_base_url_service_client_operations.py
+++ /dev/null
@@ -1,115 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiCustomBaseUrlServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_request(*, id: int, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/test")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiCustomBaseUrlServiceClientOperationsMixin(  # pylint: disable=name-too-long
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiCustomBaseUrlServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test(self, id: int, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """Should be a mixin operation. Put in 2 for the required parameter and have the correct api
-        version of 2.0.0 to pass.
-
-        :param id: An int parameter. Put in 2 to pass. Required.
-        :type id: int
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version("test") or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_request(
-            id=id,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        path_format_arguments = {
-            "Endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, "str", skip_quote=True),
-        }
-        _request.url = self._client.format_url(_request.url, **path_format_arguments)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/setup.py
deleted file mode 100644
index aceae3fc0ed..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapicustombaseurl"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapi custom base url",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapicustombaseurl"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_configuration.py
deleted file mode 100644
index 2beae0656b9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_configuration.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapidataplane/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_multiapi_service_client.py
deleted file mode 100644
index e12d2069db1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_multiapi_service_client.py
+++ /dev/null
@@ -1,169 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapidataplane.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles=KnownProfiles.default,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapidataplane.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapidataplane.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapidataplane.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapidataplane.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapidataplane.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_operations_mixin.py
deleted file mode 100644
index bdf9c45a755..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_operations_mixin.py
+++ /dev/null
@@ -1,174 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapidataplane.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapidataplane.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_configuration.py
deleted file mode 100644
index f5910f092f7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_configuration.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapidataplane/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_multiapi_service_client.py
deleted file mode 100644
index c8ec3590978..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,169 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapidataplane.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles = KnownProfiles.default,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapidataplane.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapidataplane.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapidataplane.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapidataplane.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapidataplane.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapidataplane.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_operations_mixin.py
deleted file mode 100644
index 63eeb9ef2f9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/aio/_operations_mixin.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapidataplane.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_configuration.py
deleted file mode 100644
index 09e03ece143..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_metadata.json
deleted file mode 100644
index 6a0bc5e3608..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_metadata.json
+++ /dev/null
@@ -1,183 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapidataplane.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapidataplane.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapidataplane.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapidataplane.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapidataplane.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapidataplane.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapidataplane.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_multiapi_service_client.py
deleted file mode 100644
index 1b29166016c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_configuration.py
deleted file mode 100644
index 3d6432fa758..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index 15f862472f8..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,106 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 88dfd87a01c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,496 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.polling.async_base_polling import AsyncLROBasePolling
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapidataplane.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapidataplane.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 6e85a1463fa..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_models_py3.py
deleted file mode 100644
index e51da879214..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapidataplane.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapidataplane.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 42c244f79ef..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,574 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.polling.base_polling import LROBasePolling
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapidataplane.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapidataplane.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapidataplane.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapidataplane.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapidataplane.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 09b4bb1fb09..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_configuration.py
deleted file mode 100644
index 5e60bea3540..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_metadata.json
deleted file mode 100644
index 48dcf807779..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapidataplane.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapidataplane.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_multiapi_service_client.py
deleted file mode 100644
index 9fcf15f7aa4..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapidataplane.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_configuration.py
deleted file mode 100644
index 8d71e3f2f72..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index 116cc3944db..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapidataplane.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index eca173718d7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,152 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index e9b1fba3a59..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,198 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapidataplane.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapidataplane.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 0eac39118b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,99 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 28051f16b8e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,200 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 26f2e669f89..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,241 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapidataplane.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapidataplane.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapidataplane.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index 44925122208..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,121 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_configuration.py
deleted file mode 100644
index 9826b12b94f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_metadata.json
deleted file mode 100644
index 8a27700161a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapidataplane.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_multiapi_service_client.py
deleted file mode 100644
index 1bb4be8e1eb..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapidataplane.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_configuration.py
deleted file mode 100644
index 0b30d2372cd..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapidataplane/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 023f005a955..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapidataplane.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapidataplane.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8ba241fd8e7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,180 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index a72d3d18f45..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,235 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapidataplane.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapidataplane.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index f217821d1fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,193 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapidataplane.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapidataplane.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_models_py3.py
deleted file mode 100644
index f3b491f644d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapidataplane.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapidataplane.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index e8e8fd73de9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,222 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index a5933ef9816..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,269 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapidataplane.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapidataplane.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapidataplane.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapidataplane.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index 5c06bb41f3f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,238 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapidataplane.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapidataplane.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapidataplane.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/setup.py
deleted file mode 100644
index bdf3207721e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapidataplane"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapi data plane",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapidataplane"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_configuration.py
deleted file mode 100644
index 01ae174435d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_configuration.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapikeywordonly/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_multiapi_service_client.py
deleted file mode 100644
index 84164bb2598..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_multiapi_service_client.py
+++ /dev/null
@@ -1,169 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapikeywordonly.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles=KnownProfiles.default,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapikeywordonly.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapikeywordonly.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapikeywordonly.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapikeywordonly.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapikeywordonly.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_operations_mixin.py
deleted file mode 100644
index f8b193d6dc3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_operations_mixin.py
+++ /dev/null
@@ -1,177 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions
-        :keyword client_request_id: Default value is None.
-        :paramtype client_request_id: str
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapikeywordonly.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(test_lro_and_paging_options, client_request_id=client_request_id, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        *,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :keyword greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :paramtype greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, greeting_in_french=greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        *,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id=id, message=message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_configuration.py
deleted file mode 100644
index 9e3ab176d4f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_configuration.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', [])
-        kwargs.setdefault('sdk_moniker', 'multiapikeywordonly/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_multiapi_service_client.py
deleted file mode 100644
index 7d181c0167b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,169 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapikeywordonly.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles = KnownProfiles.default,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapikeywordonly.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapikeywordonly.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapikeywordonly.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapikeywordonly.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapikeywordonly.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapikeywordonly.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_operations_mixin.py
deleted file mode 100644
index a7c7d8c4836..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/aio/_operations_mixin.py
+++ /dev/null
@@ -1,178 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions
-        :keyword client_request_id: Default value is None.
-        :paramtype client_request_id: str
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(test_lro_and_paging_options, client_request_id=client_request_id, **kwargs)
-
-    async def test_different_calls(
-        self,
-        *,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :keyword greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :paramtype greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, greeting_in_french=greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        *,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id=id, message=message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_configuration.py
deleted file mode 100644
index 6810552fa19..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_metadata.json
deleted file mode 100644
index 4c012650518..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_metadata.json
+++ /dev/null
@@ -1,183 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    *,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:keyword id: An int parameter. Required.\n:paramtype id: int\n:keyword message: An optional string parameter. Default value is None.\n:paramtype message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id=id, message=message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    *,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:keyword id: An int parameter. Required.\n:paramtype id: int\n:keyword message: An optional string parameter. Default value is None.\n:paramtype message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id=id, message=message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapikeywordonly.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapikeywordonly.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    *,\n    client_request_id: Optional[str] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions\n:keyword client_request_id: Default value is None.\n:paramtype client_request_id: str\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "test_lro_and_paging_options, client_request_id=client_request_id, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    *,\n    client_request_id: Optional[str] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions\n:keyword client_request_id: Default value is None.\n:paramtype client_request_id: str\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "test_lro_and_paging_options, client_request_id=client_request_id, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    *,\n    client_request_id: Optional[str] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions\n:keyword client_request_id: Default value is None.\n:paramtype client_request_id: str\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapikeywordonly.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "test_lro_and_paging_options, client_request_id=client_request_id, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    *,\n    client_request_id: Optional[str] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions\n:keyword client_request_id: Default value is None.\n:paramtype client_request_id: str\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "test_lro_and_paging_options, client_request_id=client_request_id, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    *,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    *,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_multiapi_service_client.py
deleted file mode 100644
index 0835474f3b7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_configuration.py
deleted file mode 100644
index e704da2b33e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index 8fcadb39990..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,106 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 85db2407b71..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,498 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.polling.async_base_polling import AsyncLROBasePolling
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, *, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapikeywordonly.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions
-        :keyword client_request_id: Default value is None.
-        :paramtype client_request_id: str
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                client_request_id=client_request_id,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, *, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 5027fb9df33..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_models_py3.py
deleted file mode 100644
index 7b4bec0e8ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapikeywordonly.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapikeywordonly.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 18a0474f857..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,576 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.polling.base_polling import LROBasePolling
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapikeywordonly.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapikeywordonly.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapikeywordonly.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        *,
-        client_request_id: Optional[str] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapikeywordonly.v1.models.TestLroAndPagingOptions
-        :keyword client_request_id: Default value is None.
-        :paramtype client_request_id: str
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapikeywordonly.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                client_request_id=client_request_id,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, *, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 3919ae35935..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_configuration.py
deleted file mode 100644
index 74eee4f7f7d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_metadata.json
deleted file mode 100644
index f52cd4b17e2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    *,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:keyword id: An int parameter. Required.\n:paramtype id: int\n:keyword message: An optional string parameter. Default value is None.\n:paramtype message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapikeywordonly.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id=id, message=message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    *,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:keyword id: An int parameter. Required.\n:paramtype id: int\n:keyword message: An optional string parameter. Default value is None.\n:paramtype message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapikeywordonly.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id=id, message=message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    *,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:keyword greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:paramtype greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    *,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:keyword greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:paramtype greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_multiapi_service_client.py
deleted file mode 100644
index 06870d5fb01..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapikeywordonly.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_configuration.py
deleted file mode 100644
index 2faf9fb852f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index f95c900ea0f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapikeywordonly.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index a2b0e9e3aa1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,152 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, *, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 86cdfddb628..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,198 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index fff2ed46149..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,99 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, *, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :keyword parameter_one: A boolean parameter. Required.
-        :paramtype parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 21a2a075683..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,200 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, *, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :keyword id: An int parameter. Required.
-        :paramtype id: int
-        :keyword message: An optional string parameter. Default value is None.
-        :paramtype message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 2e66e1402a1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,241 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index 3ee03e740f1..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,123 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, *, parameter_one: bool, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :keyword parameter_one: A boolean parameter. Required.
-        :paramtype parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_configuration.py
deleted file mode 100644
index 525afec9c0b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_metadata.json
deleted file mode 100644
index b0ddcbfe2c8..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_metadata.json
+++ /dev/null
@@ -1,132 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": [],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapikeywordonly.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    *,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:keyword greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:paramtype greeting_in_chinese: str\n:keyword greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:paramtype greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, greeting_in_french=greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    *,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:keyword greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:paramtype greeting_in_english: str\n:keyword greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:paramtype greeting_in_chinese: str\n:keyword greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:paramtype greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english=greeting_in_english, greeting_in_chinese=greeting_in_chinese, greeting_in_french=greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_multiapi_service_client.py
deleted file mode 100644
index fa506d30455..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapikeywordonly.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_configuration.py
deleted file mode 100644
index fa0ebc27201..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_configuration.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", [])
-        kwargs.setdefault("sdk_moniker", "multiapikeywordonly/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if not self.credential_scopes and not self.authentication_policy:
-            raise ValueError("You must provide either credential_scopes or authentication_policy as kwargs")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 830e21d4773..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,109 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapikeywordonly.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapikeywordonly.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index ec9d6d028fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,181 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        *,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :keyword greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :paramtype greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index e00e20530f0..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,235 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 3bd7227a12c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,193 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapikeywordonly.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapikeywordonly.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_models_py3.py
deleted file mode 100644
index 09275b98e34..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapikeywordonly.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapikeywordonly.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 573b9f4feba..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        *,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :keyword greeting_in_english: pass in 'hello' to pass test. Required.
-        :paramtype greeting_in_english: str
-        :keyword greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :paramtype greeting_in_chinese: str
-        :keyword greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :paramtype greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index 3a216e9ed71..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,269 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapikeywordonly.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapikeywordonly.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapikeywordonly.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index 27e99a5b957..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,238 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapikeywordonly.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapikeywordonly.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapikeywordonly.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/setup.py
deleted file mode 100644
index b79c0895e7f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapikeywordonly"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapi custom base url",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapikeywordonly"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_configuration.py
deleted file mode 100644
index b243fe4bc40..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapinoasync/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_multiapi_service_client.py
deleted file mode 100644
index 59ce810b40a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_multiapi_service_client.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapinoasync.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles=KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapinoasync.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapinoasync.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapinoasync.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapinoasync.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapinoasync.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapinoasync.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapinoasync.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapinoasync.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_operations_mixin.py
deleted file mode 100644
index 1f5c44ca86f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_operations_mixin.py
+++ /dev/null
@@ -1,174 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapinoasync.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapinoasync.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapinoasync.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapinoasync.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_configuration.py
deleted file mode 100644
index c0e5ede1e9c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapinoasync/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_metadata.json
deleted file mode 100644
index a600a0d2eef..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_metadata.json
+++ /dev/null
@@ -1,196 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapinoasync.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapinoasync.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapinoasync.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapinoasync.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapinoasync.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapinoasync.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapinoasync.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapinoasync.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_multiapi_service_client.py
deleted file mode 100644
index 766b9b9c6ba..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,124 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapinoasync.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_models_py3.py
deleted file mode 100644
index 0e6ca3b3c37..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapinoasync.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapinoasync.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 213e4dd40d4..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,575 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.arm_polling import ARMPolling
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapinoasync.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapinoasync.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapinoasync.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapinoasync.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapinoasync.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapinoasync.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapinoasync.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 6eead699f14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapinoasync.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_configuration.py
deleted file mode 100644
index 5d01efdd51c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapinoasync/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_metadata.json
deleted file mode 100644
index 40a1404e04f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapinoasync.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapinoasync.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_multiapi_service_client.py
deleted file mode 100644
index 70337ac68f9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapinoasync.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapinoasync.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index eb9667d4ee9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapinoasync.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 07764776e39..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,242 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapinoasync.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapinoasync.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapinoasync.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapinoasync.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapinoasync.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapinoasync.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index de3868c548c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapinoasync.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_configuration.py
deleted file mode 100644
index 6c2b833fe72..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapinoasync/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_metadata.json
deleted file mode 100644
index 9931df1a2ac..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapinoasync.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.async_paging.AsyncItemPaged[~multiapinoasync.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_multiapi_service_client.py
deleted file mode 100644
index 4bfadc79242..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,127 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapinoasync.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two: multiapinoasync.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_models_py3.py
deleted file mode 100644
index 1b8cf407f51..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapinoasync.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapinoasync.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index c51d68a4019..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapinoasync.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index 1b698418913..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,270 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapinoasync.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapinoasync.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapinoasync.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapinoasync.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapinoasync.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapinoasync.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapinoasync.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index c65b78dcc14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,239 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapinoasync.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapinoasync.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapinoasync.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/setup.py
deleted file mode 100644
index 3815c124281..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapinoasync"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapinoasync",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapinoasync"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_configuration.py
deleted file mode 100644
index f7ea83625bf..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_configuration.py
+++ /dev/null
@@ -1,59 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapisecurity/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_multiapi_service_client.py
deleted file mode 100644
index d3dc33f622a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_multiapi_service_client.py
+++ /dev/null
@@ -1,142 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '1.0.0'
-    _PROFILE_TAG = "multiapisecurity.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles=KnownProfiles.default,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 0.0.0: :mod:`v0.models<multiapisecurity.v0.models>`
-           * 1.0.0: :mod:`v1.models<multiapisecurity.v1.models>`
-        """
-        if api_version == '0.0.0':
-            from .v0 import models
-            return models
-        elif api_version == '1.0.0':
-            from .v1 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 0.0.0: :class:`OperationGroupOneOperations<multiapisecurity.v0.operations.OperationGroupOneOperations>`
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapisecurity.v1.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '0.0.0':
-            from .v0.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_operations_mixin.py
deleted file mode 100644
index b7a8759ee5d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_operations_mixin.py
+++ /dev/null
@@ -1,138 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapisecurity.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapisecurity.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_configuration.py
deleted file mode 100644
index fd07192a29d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_configuration.py
+++ /dev/null
@@ -1,59 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapisecurity/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or policies.HttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_multiapi_service_client.py
deleted file mode 100644
index 681cdbfb1ea..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,142 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '1.0.0'
-    _PROFILE_TAG = "multiapisecurity.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: str = "http://localhost:3000",
-        profile: KnownProfiles = KnownProfiles.default,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        self._config = MultiapiServiceClientConfiguration(credential, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 0.0.0: :mod:`v0.models<multiapisecurity.v0.models>`
-           * 1.0.0: :mod:`v1.models<multiapisecurity.v1.models>`
-        """
-        if api_version == '0.0.0':
-            from ..v0 import models
-            return models
-        elif api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 0.0.0: :class:`OperationGroupOneOperations<multiapisecurity.v0.aio.operations.OperationGroupOneOperations>`
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapisecurity.v1.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '0.0.0':
-            from ..v0.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_operations_mixin.py
deleted file mode 100644
index b5f4153570e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/aio/_operations_mixin.py
+++ /dev/null
@@ -1,139 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapisecurity.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapisecurity.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/models.py
deleted file mode 100644
index 3cbb6d0d859..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/models.py
+++ /dev/null
@@ -1,7 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_configuration.py
deleted file mode 100644
index 9851b5dfa42..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_configuration.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "0.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapisecurity/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_metadata.json
deleted file mode 100644
index 91643beafbd..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_metadata.json
+++ /dev/null
@@ -1,97 +0,0 @@
-{
-    "chosen_version": "0.0.0",
-    "total_api_version_list": ["0.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_multiapi_service_client.py
deleted file mode 100644
index 9e7c6e778dd..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_multiapi_service_client.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient:
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapisecurity.v0.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "0.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_configuration.py
deleted file mode 100644
index 74a93dfdd47..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_configuration.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "0.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapisecurity/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_multiapi_service_client.py
deleted file mode 100644
index b811a2145ef..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,104 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient:
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapisecurity.v0.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "0.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "0.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/__init__.py
deleted file mode 100644
index f8443c0f5fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/__init__.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 63dce16d4c6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapisecurity.v0.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "0.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/__init__.py
deleted file mode 100644
index 513632adef7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/__init__.py
+++ /dev/null
@@ -1,31 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_models_py3.py
deleted file mode 100644
index 8a0e693958a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_models_py3.py
+++ /dev/null
@@ -1,88 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapisecurity.v0.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapisecurity.v0.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/__init__.py
deleted file mode 100644
index f8443c0f5fe..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/__init__.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_operation_group_one_operations.py
deleted file mode 100644
index 058e56438e6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "0.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapisecurity.v0.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "0.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_configuration.py
deleted file mode 100644
index ab8adb477f6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_configuration.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "TokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapisecurity/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.BearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_metadata.json
deleted file mode 100644
index 5fc290cc782..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_metadata.json
+++ /dev/null
@@ -1,183 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": "\"http://localhost:3000\"",
-        "parameterized_host_template": null,
-        "azure_arm": false,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"PipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.core\": [\"AsyncPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}, \"stdlib\": {\"typing_extensions\": [\"Self\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            }
-        },
-        "constant": {
-        },
-        "call": "credential",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: str = \"http://localhost:3000\",",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "policies.BearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "policies.AsyncBearerTokenCredentialPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\"._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"]}, \"local\": {\".._version\": [\"VERSION\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapisecurity.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapisecurity.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapisecurity.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapisecurity.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapisecurity.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapisecurity.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapisecurity.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapisecurity.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_multiapi_service_client.py
deleted file mode 100644
index 30660c8d715..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,102 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import PipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapisecurity.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(self, credential: "TokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: PipelineClient = PipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_configuration.py
deleted file mode 100644
index cc1b4d0032a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_configuration.py
+++ /dev/null
@@ -1,58 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(self, credential: "AsyncTokenCredential", **kwargs: Any) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapisecurity/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or policies.HttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = policies.AsyncBearerTokenCredentialPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index be90cd0ad28..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,106 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, TYPE_CHECKING
-from typing_extensions import Self
-
-from azure.core import AsyncPipelineClient
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one: multiapisecurity.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is "http://localhost:3000".
-    :type base_url: str
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", base_url: str = "http://localhost:3000", **kwargs: Any
-    ) -> None:
-        self._config = MultiapiServiceClientConfiguration(credential=credential, **kwargs)
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncPipelineClient = AsyncPipelineClient(base_url=base_url, policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 4b8264f3b84..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,496 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.polling.async_base_polling import AsyncLROBasePolling
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapisecurity.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapisecurity.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapisecurity.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncLROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index fb90a664507..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapisecurity.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_models_py3.py
deleted file mode 100644
index c2e625ad032..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapisecurity.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapisecurity.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 634874100e9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,574 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.polling.base_polling import LROBasePolling
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapisecurity.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapisecurity.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapisecurity.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options: ~multiapisecurity.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapisecurity.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, LROBasePolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 7662a7e36bb..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapisecurity.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/setup.py
deleted file mode 100644
index 5466ba46ec5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiSecurity/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapisecurity"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapisecurity",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapisecurity"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/__init__.py
deleted file mode 100644
index d55ccad1f57..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/__init__.py
deleted file mode 100644
index b54d40dbd2f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
-
-try:
-    from ._patch import patch_sdk  # type: ignore
-    patch_sdk()
-except ImportError:
-    pass
-
-from ._version import VERSION
-
-__version__ = VERSION
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_configuration.py
deleted file mode 100644
index 344ae084cc6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-from ._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapiwithsubmodule/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ):
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.RetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.RedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_multiapi_service_client.py
deleted file mode 100644
index fdc3cd5a67e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_multiapi_service_client.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-from ._serialization import Deserializer, Serializer
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapiwithsubmodule.submodule.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        api_version: Optional[str]=None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles=KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ):
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapiwithsubmodule.submodule.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapiwithsubmodule.submodule.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapiwithsubmodule.submodule.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from .v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from .v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from .v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v1.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v2.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v3.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from .v1.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapiwithsubmodule.submodule.v2.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapiwithsubmodule.submodule.v3.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from .v2.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    def close(self):
-        self._client.close()
-    def __enter__(self):
-        self._client.__enter__()
-        return self
-    def __exit__(self, *exc_details):
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_operations_mixin.py
deleted file mode 100644
index d2a1acee38c..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_operations_mixin.py
+++ /dev/null
@@ -1,175 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from ._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, IO, Iterator, Optional, Union
-
-from azure.core.paging import ItemPaged
-from azure.core.polling import LROPoller
-
-from . import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro(product, **kwargs)
-
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from .v1.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from .v2.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from .v3.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/__init__.py
deleted file mode 100644
index 59333308532..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/serialization.py
deleted file mode 100644
index 05bcd7d403a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_utils/serialization.py
+++ /dev/null
@@ -1,2025 +0,0 @@
-# coding=utf-8
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_version.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_version.py
deleted file mode 100644
index a30a458f8b5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/_version.py
+++ /dev/null
@@ -1,8 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-
-VERSION = "0.1.0"
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/__init__.py
deleted file mode 100644
index c5088f7a288..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/__init__.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from ._multiapi_service_client import MultiapiServiceClient
-__all__ = ['MultiapiServiceClient']
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_configuration.py
deleted file mode 100644
index 488ba43dbf7..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_configuration.py
+++ /dev/null
@@ -1,65 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-from .._version import VERSION
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class MultiapiServiceClientConfiguration:
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.credential_scopes = kwargs.pop('credential_scopes', ['https://management.azure.com/.default'])
-        kwargs.setdefault('sdk_moniker', 'multiapiwithsubmodule/{}'.format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(
-        self,
-        **kwargs: Any
-    ) -> None:
-        self.user_agent_policy = kwargs.get('user_agent_policy') or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get('headers_policy') or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get('proxy_policy') or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get('logging_policy') or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get('http_logging_policy') or ARMHttpLoggingPolicy(**kwargs)
-        self.retry_policy = kwargs.get('retry_policy') or policies.AsyncRetryPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get('custom_hook_policy') or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get('redirect_policy') or policies.AsyncRedirectPolicy(**kwargs)
-        self.authentication_policy = kwargs.get('authentication_policy')
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_multiapi_service_client.py
deleted file mode 100644
index d80a5d0e618..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-from azure.profiles import KnownProfiles, ProfileDefinition
-from azure.profiles.multiapiclient import MultiApiClientMixin
-
-from .._serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from ._operations_mixin import MultiapiServiceClientOperationsMixin
-
-if TYPE_CHECKING:
-    # pylint: disable=unused-import,ungrouped-imports
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-class _SDKClient(object):
-    def __init__(self, *args, **kwargs):
-        """This is a fake class to support current implementation of MultiApiClientMixin."
-        Will be removed in final version of multiapi azure-core based client
-        """
-        pass
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin, MultiApiClientMixin, _SDKClient):
-    """Service client for multiapi client testing.
-
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :param api_version: API version to use if no profile is provided, or if missing in profile.
-    :type api_version: str
-    :param base_url: Service URL
-    :type base_url: str
-    :param profile: A profile definition, from KnownProfiles to dict.
-    :type profile: azure.profiles.KnownProfiles
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
-    """
-
-    DEFAULT_API_VERSION = '3.0.0'
-    _PROFILE_TAG = "multiapiwithsubmodule.submodule.MultiapiServiceClient"
-    LATEST_PROFILE = ProfileDefinition({
-        _PROFILE_TAG: {
-            None: DEFAULT_API_VERSION,
-            'begin_test_lro': '1.0.0',
-            'begin_test_lro_and_paging': '1.0.0',
-            'test_one': '2.0.0',
-        }},
-        _PROFILE_TAG + " latest"
-    )
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        api_version: Optional[str] = None,
-        base_url: Optional[str] = None,
-        profile: KnownProfiles = KnownProfiles.default,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        if api_version:
-            kwargs.setdefault('api_version', api_version)
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(credential, cloud_setting, credential_scopes=credential_scopes, **kwargs)
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-        super(MultiapiServiceClient, self).__init__(
-            api_version=api_version,
-            profile=profile
-        )
-
-    @classmethod
-    def _models_dict(cls, api_version):
-        return {k: v for k, v in cls.models(api_version).__dict__.items() if isinstance(v, type)}
-
-    @classmethod
-    def models(cls, api_version=DEFAULT_API_VERSION):
-        """Module depends on the API version:
-
-           * 1.0.0: :mod:`v1.models<multiapiwithsubmodule.submodule.v1.models>`
-           * 2.0.0: :mod:`v2.models<multiapiwithsubmodule.submodule.v2.models>`
-           * 3.0.0: :mod:`v3.models<multiapiwithsubmodule.submodule.v3.models>`
-        """
-        if api_version == '1.0.0':
-            from ..v1 import models
-            return models
-        elif api_version == '2.0.0':
-            from ..v2 import models
-            return models
-        elif api_version == '3.0.0':
-            from ..v3 import models
-            return models
-        raise ValueError("API version {} is not available".format(api_version))
-
-    @property
-    def operation_group_one(self):
-        """Instance depends on the API version:
-
-           * 1.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v1.aio.operations.OperationGroupOneOperations>`
-           * 2.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v2.aio.operations.OperationGroupOneOperations>`
-           * 3.0.0: :class:`OperationGroupOneOperations<multiapiwithsubmodule.submodule.v3.aio.operations.OperationGroupOneOperations>`
-        """
-        api_version = self._get_api_version('operation_group_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupOneOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupOneOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_one'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    @property
-    def operation_group_two(self):
-        """Instance depends on the API version:
-
-           * 2.0.0: :class:`OperationGroupTwoOperations<multiapiwithsubmodule.submodule.v2.aio.operations.OperationGroupTwoOperations>`
-           * 3.0.0: :class:`OperationGroupTwoOperations<multiapiwithsubmodule.submodule.v3.aio.operations.OperationGroupTwoOperations>`
-        """
-        api_version = self._get_api_version('operation_group_two')
-        if api_version == '2.0.0':
-            from ..v2.aio.operations import OperationGroupTwoOperations as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import OperationGroupTwoOperations as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation group 'operation_group_two'".format(api_version))
-        self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
-
-    async def close(self):
-        await self._client.close()
-    async def __aenter__(self):
-        await self._client.__aenter__()
-        return self
-    async def __aexit__(self, *exc_details):
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_operations_mixin.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_operations_mixin.py
deleted file mode 100644
index c79cae6f38a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/aio/_operations_mixin.py
+++ /dev/null
@@ -1,177 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is
-# regenerated.
-# --------------------------------------------------------------------------
-from .._serialization import Serializer, Deserializer
-from io import IOBase
-from typing import Any, AsyncIterator, IO, Optional, Union
-
-from azure.core.async_paging import AsyncItemPaged
-from azure.core.polling import AsyncLROPoller
-
-from .. import models as _models
-
-
-class MultiapiServiceClientOperationsMixin(object):
-
-    async def begin_test_lro(
-        self,
-        product: Optional[Union[_models.Product, IO[bytes]]] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro(product, **kwargs)
-
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('begin_test_lro_and_paging')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'begin_test_lro_and_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.begin_test_lro_and_paging(client_request_id, test_lro_and_paging_options, **kwargs)
-
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_different_calls')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_different_calls'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_different_calls(greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs)
-
-    async def test_one(
-        self,
-        id: int,
-        message: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_one')
-        if api_version == '1.0.0':
-            from ..v1.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        elif api_version == '2.0.0':
-            from ..v2.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_one'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return await mixin_instance.test_one(id, message, **kwargs)
-
-    def test_paging(
-        self,
-        **kwargs: Any
-    ) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        api_version = self._get_api_version('test_paging')
-        if api_version == '3.0.0':
-            from ..v3.aio.operations import MultiapiServiceClientOperationsMixin as OperationClass
-        else:
-            raise ValueError("API version {} does not have operation 'test_paging'".format(api_version))
-        mixin_instance = OperationClass()
-        mixin_instance._client = self._client
-        mixin_instance._config = self._config
-        mixin_instance._config.api_version = api_version
-        mixin_instance._serialize = Serializer(self._models_dict(api_version))
-        mixin_instance._serialize.client_side_validation = False
-        mixin_instance._deserialize = Deserializer(self._models_dict(api_version))
-        return mixin_instance.test_paging(**kwargs)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/models.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/models.py
deleted file mode 100644
index 954f1ee54ab..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/models.py
+++ /dev/null
@@ -1,9 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-# --------------------------------------------------------------------------
-from .v1.models import *
-from .v2.models import *
-from .v3.models import *
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_configuration.py
deleted file mode 100644
index e780d2d188a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_metadata.json
deleted file mode 100644
index f2556dcbbee..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_metadata.json
+++ /dev/null
@@ -1,196 +0,0 @@
-{
-    "chosen_version": "1.0.0",
-    "total_api_version_list": ["1.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": true,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"IO\", \"Iterator\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"LROPoller\"], \"azure.core.paging\": [\"ItemPaged\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"AsyncIterator\", \"IO\", \"Optional\", \"Union\"], \"io\": [\"IOBase\"]}, \"sdkcore\": {\"azure.core.polling\": [\"AsyncLROPoller\"], \"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(  # pylint: disable=inconsistent-return-statements\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"TestOne should be in an FirstVersionOperationsMixin.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "_test_lro_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_initial(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "begin_test_lro" : {
-                "sync": {
-                    "signature": "def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e LROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]\n:return: An instance of LROPoller that returns either Product or the result of cls(response)\n:rtype: ~azure.core.polling.LROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro(\n    self,\n    product: Optional[Union[_models.Product, IO[bytes]]] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[_models.Product]:\n",
-                    "doc": "\"\"\"Put in whatever shape of Product you want, will return a Product with id equal to 100.\n\n:param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is\n None.\n:type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]\n:return: An instance of AsyncLROPoller that returns either Product or the result of\n cls(response)\n:rtype: ~azure.core.polling.AsyncLROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "product, **kwargs"
-                }
-            },
-            "_test_lro_and_paging_initial" : {
-                "sync": {
-                    "signature": "def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e Iterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions\n:return: Iterator[bytes] or the result of cls(response)\n:rtype: Iterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def _test_lro_and_paging_initial(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncIterator[bytes]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions\n:return: AsyncIterator[bytes] or the result of cls(response)\n:rtype: AsyncIterator[bytes]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "begin_test_lro_and_paging" : {
-                "sync": {
-                    "signature": "def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e LROPoller[ItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def begin_test_lro_and_paging(\n    self,\n    client_request_id: Optional[str] = None,\n    test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,\n    **kwargs: Any\n) -\u003e AsyncLROPoller[AsyncItemPaged[\"_models.Product\"]]:\n",
-                    "doc": "\"\"\"A long-running paging operation that includes a nextLink that has 10 pages.\n\n:param client_request_id: Default value is None.\n:type client_request_id: str\n:param test_lro_and_paging_options: Parameter group. Default value is None.\n:type test_lro_and_paging_options:\n ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions\n:return: An instance of LROPoller that returns an iterator like instance of either PagingResult\n or the result of cls(response)\n:rtype:\n ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "client_request_id, test_lro_and_paging_options, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_multiapi_service_client.py
deleted file mode 100644
index 7174dec5378..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_multiapi_service_client.py
+++ /dev/null
@@ -1,125 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v1.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_configuration.py
deleted file mode 100644
index 4563aa5f39f..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "1.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_multiapi_service_client.py
deleted file mode 100644
index d36fd723c95..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,129 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v1.aio.operations.OperationGroupOneOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "1.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    :keyword int polling_interval: Default waiting time between two polls for LRO operations if no
-     Retry-After header is present.
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "1.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index e1188fe48c5..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,498 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, AsyncIterator, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.async_arm_polling import AsyncARMPolling
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_lro_and_paging_request,
-    build_test_lro_request,
-    build_test_one_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    async def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> AsyncLROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]
-        :return: An instance of AsyncLROPoller that returns either Product or the result of
-         cls(response)
-        :rtype: ~azure.core.polling.AsyncLROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    async def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncIterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[AsyncIterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                await response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> AsyncLROPoller[AsyncItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.AsyncLROPoller[~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = await self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            await raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            async def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return await get_next(next_link)
-
-            return AsyncItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: AsyncPollingMethod = cast(AsyncPollingMethod, AsyncARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(AsyncPollingMethod, AsyncNoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return AsyncLROPoller[AsyncItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return AsyncLROPoller[AsyncItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace_async
-    async def test_different_calls(self, greeting_in_english: str, **kwargs: Any) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index 8a9a62edd42..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,97 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v1.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_two(self, **kwargs: Any) -> None:
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/__init__.py
deleted file mode 100644
index e389a34d387..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/__init__.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    PagingResult,
-    Product,
-    TestLroAndPagingOptions,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "PagingResult",
-    "Product",
-    "TestLroAndPagingOptions",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_models_py3.py
deleted file mode 100644
index 89ad9df253a..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_models_py3.py
+++ /dev/null
@@ -1,116 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapiwithsubmodule.submodule.v1.models.Product]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[Product]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.Product"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class Product(_serialization.Model):
-    """Product.
-
-    :ivar id:
-    :vartype id: int
-    """
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-    }
-
-    def __init__(self, *, id: Optional[int] = None, **kwargs: Any) -> None:  # pylint: disable=redefined-builtin
-        """
-        :keyword id:
-        :paramtype id: int
-        """
-        super().__init__(**kwargs)
-        self.id = id
-
-
-class TestLroAndPagingOptions(_serialization.Model):
-    """Parameter group.
-
-    :ivar maxresults: Sets the maximum number of items to return in the response.
-    :vartype maxresults: int
-    :ivar timeout: Sets the maximum time that the server can spend processing the request, in
-     seconds. The default is 30 seconds.
-    :vartype timeout: int
-    """
-
-    _attribute_map = {
-        "maxresults": {"key": "maxresults", "type": "int"},
-        "timeout": {"key": "timeout", "type": "int"},
-    }
-
-    def __init__(self, *, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any) -> None:
-        """
-        :keyword maxresults: Sets the maximum number of items to return in the response.
-        :paramtype maxresults: int
-        :keyword timeout: Sets the maximum time that the server can spend processing the request, in
-         seconds. The default is 30 seconds.
-        :paramtype timeout: int
-        """
-        super().__init__(**kwargs)
-        self.maxresults = maxresults
-        self.timeout = timeout
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/__init__.py
deleted file mode 100644
index dc6be7ed447..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/__init__.py
+++ /dev/null
@@ -1,27 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 60f81a606bc..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,576 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Iterator, Optional, TypeVar, Union, cast, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    StreamClosedError,
-    StreamConsumedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.polling import LROPoller, NoPolling, PollingMethod
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-from azure.mgmt.core.polling.arm_polling import ARMPolling
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_lro_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lro")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_lro_and_paging_request(
-    *, client_request_id: Optional[str] = None, maxresults: Optional[int] = None, timeout: int = 30, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/lroAndPaging")
-
-    # Construct headers
-    if client_request_id is not None:
-        _headers["client-request-id"] = _SERIALIZER.header("client_request_id", client_request_id, "str")
-    if maxresults is not None:
-        _headers["maxresults"] = _SERIALIZER.header("maxresults", maxresults, "int")
-    if timeout is not None:
-        _headers["timeout"] = _SERIALIZER.header("timeout", timeout, "int")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(*, greeting_in_english: str, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(  # pylint: disable=inconsistent-return-statements
-        self, id: int, message: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestOne should be in an FirstVersionOperationsMixin.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    def _test_lro_initial(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if product else None
-        _json = None
-        _content = None
-        if isinstance(product, (IOBase, bytes)):
-            _content = product
-        else:
-            if product is not None:
-                _json = self._serialize.body(product, "Product")
-            else:
-                _json = None
-
-        _request = build_test_lro_request(
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200, 204]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[_models.Product] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def begin_test_lro(
-        self, product: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Default value is None.
-        :type product: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def begin_test_lro(
-        self, product: Optional[Union[_models.Product, IO[bytes]]] = None, **kwargs: Any
-    ) -> LROPoller[_models.Product]:
-        """Put in whatever shape of Product you want, will return a Product with id equal to 100.
-
-        :param product: Product to put. Is either a Product type or a IO[bytes] type. Default value is
-         None.
-        :type product: ~multiapiwithsubmodule.submodule.v1.models.Product or IO[bytes]
-        :return: An instance of LROPoller that returns either Product or the result of cls(response)
-        :rtype: ~azure.core.polling.LROPoller[~multiapiwithsubmodule.submodule.v1.models.Product]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = kwargs.pop("params", {}) or {}
-
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if product else None
-        cls: ClsType[_models.Product] = kwargs.pop("cls", None)
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_initial(
-                product=product,
-                content_type=content_type,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            deserialized = self._deserialize("Product", pipeline_response.http_response)
-            if cls:
-                return cls(pipeline_response, deserialized, {})  # type: ignore
-            return deserialized
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[_models.Product].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[_models.Product](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    def _test_lro_and_paging_initial(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> Iterator[bytes]:
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[Iterator[bytes]] = kwargs.pop("cls", None)
-
-        _maxresults = None
-        _timeout = None
-        if test_lro_and_paging_options is not None:
-            _maxresults = test_lro_and_paging_options.maxresults
-            _timeout = test_lro_and_paging_options.timeout
-
-        _request = build_test_lro_and_paging_request(
-            client_request_id=client_request_id,
-            maxresults=_maxresults,
-            timeout=_timeout,  # type: ignore
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _decompress = kwargs.pop("decompress", True)
-        _stream = True
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            try:
-                response.read()  # Load the body in memory and close the socket
-            except (StreamConsumedError, StreamClosedError):
-                pass
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-        deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def begin_test_lro_and_paging(
-        self,
-        client_request_id: Optional[str] = None,
-        test_lro_and_paging_options: Optional[_models.TestLroAndPagingOptions] = None,
-        **kwargs: Any
-    ) -> LROPoller[ItemPaged["_models.Product"]]:
-        """A long-running paging operation that includes a nextLink that has 10 pages.
-
-        :param client_request_id: Default value is None.
-        :type client_request_id: str
-        :param test_lro_and_paging_options: Parameter group. Default value is None.
-        :type test_lro_and_paging_options:
-         ~multiapiwithsubmodule.submodule.v1.models.TestLroAndPagingOptions
-        :return: An instance of LROPoller that returns an iterator like instance of either PagingResult
-         or the result of cls(response)
-        :rtype:
-         ~azure.core.polling.LROPoller[~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v1.models.Product]]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-                _maxresults = None
-                _timeout = None
-                if test_lro_and_paging_options is not None:
-                    _maxresults = test_lro_and_paging_options.maxresults
-                    _timeout = test_lro_and_paging_options.timeout
-
-                _request = build_test_lro_and_paging_request(
-                    client_request_id=client_request_id,
-                    maxresults=_maxresults,
-                    timeout=_timeout,  # type: ignore
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response.http_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
-        lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
-        cont_token: Optional[str] = kwargs.pop("continuation_token", None)
-        if cont_token is None:
-            raw_result = self._test_lro_and_paging_initial(
-                client_request_id=client_request_id,
-                test_lro_and_paging_options=test_lro_and_paging_options,
-                cls=lambda x, y, z: x,
-                headers=_headers,
-                params=_params,
-                **kwargs
-            )
-            raw_result.http_response.read()  # type: ignore
-        kwargs.pop("error_map", None)
-
-        def get_long_running_output(pipeline_response):
-            def internal_get_next(next_link=None):
-                if next_link is None:
-                    return pipeline_response
-                return get_next(next_link)
-
-            return ItemPaged(internal_get_next, extract_data)
-
-        if polling is True:
-            polling_method: PollingMethod = cast(PollingMethod, ARMPolling(lro_delay, **kwargs))
-        elif polling is False:
-            polling_method = cast(PollingMethod, NoPolling())
-        else:
-            polling_method = polling
-        if cont_token:
-            return LROPoller[ItemPaged["_models.Product"]].from_continuation_token(
-                polling_method=polling_method,
-                continuation_token=cont_token,
-                client=self._client,
-                deserialization_callback=get_long_running_output,
-            )
-        return LROPoller[ItemPaged["_models.Product"]](
-            self._client, raw_result, get_long_running_output, polling_method  # type: ignore
-        )
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "1.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_operation_group_one_operations.py
deleted file mode 100644
index 2a88351d307..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "1.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v1.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_two(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestTwo should be in OperationGroupOneOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "1.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_configuration.py
deleted file mode 100644
index 96f77005533..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_metadata.json
deleted file mode 100644
index afe73b98183..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "2.0.0",
-    "total_api_version_list": ["2.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"regular\": {\"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_one" : {
-                "sync": {
-                    "signature": "def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_one(\n    self,\n    id: int,\n    message: Optional[str] = None,\n    **kwargs: Any\n) -\u003e _models.ModelTwo:\n",
-                    "doc": "\"\"\"TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.\n\n:param id: An int parameter. Required.\n:type id: int\n:param message: An optional string parameter. Default value is None.\n:type message: str\n:return: ModelTwo or the result of cls(response)\n:rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "id, message, **kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_multiapi_service_client.py
deleted file mode 100644
index d696bf69a07..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_multiapi_service_client.py
+++ /dev/null
@@ -1,129 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v2.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapiwithsubmodule.submodule.v2.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_configuration.py
deleted file mode 100644
index 5edb694fc03..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "2.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_multiapi_service_client.py
deleted file mode 100644
index 0626b0bc4b4..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,133 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v2.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapiwithsubmodule.submodule.v2.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "2.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "2.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8a517325f3d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,153 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import build_test_different_calls_request, build_test_one_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace_async
-    async def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index cd6d2541114..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,199 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import build_test_three_request, build_test_two_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace_async
-    async def test_three(self, **kwargs: Any) -> None:
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index 9d9495d9cee..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,100 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v2.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace_async
-    async def test_four(self, parameter_one: bool, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/__init__.py
deleted file mode 100644
index ed8e322c54e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelTwo,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelTwo",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_models_py3.py
deleted file mode 100644
index a00726a3da2..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_models_py3.py
+++ /dev/null
@@ -1,71 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional
-
-from .._utils import serialization as _serialization
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelTwo(_serialization.Model):
-    """Only exists in api version 2.0.0.
-
-    All required parameters must be populated in order to send to server.
-
-    :ivar id: Required.
-    :vartype id: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _validation = {
-        "id": {"required": True},
-    }
-
-    _attribute_map = {
-        "id": {"key": "id", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(
-        self, *, id: int, message: Optional[str] = None, **kwargs: Any  # pylint: disable=redefined-builtin
-    ) -> None:
-        """
-        :keyword id: Required.
-        :paramtype id: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.id = id
-        self.message = message
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 8b55c98da92..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_one_request(*, id: int, message: Optional[str] = None, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testOneEndpoint")
-
-    # Construct parameters
-    _params["id"] = _SERIALIZER.query("id", id, "int")
-    if message is not None:
-        _params["message"] = _SERIALIZER.query("message", message, "str")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_one(self, id: int, message: Optional[str] = None, **kwargs: Any) -> _models.ModelTwo:
-        """TestOne should be in an SecondVersionOperationsMixin. Returns ModelTwo.
-
-        :param id: An int parameter. Required.
-        :type id: int
-        :param message: An optional string parameter. Default value is None.
-        :type message: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_one") or "2.0.0")
-        )
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        _request = build_test_one_request(
-            id=id,
-            message=message,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self, greeting_in_english: str, greeting_in_chinese: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "2.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_one_operations.py
deleted file mode 100644
index 165fab2e9aa..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,242 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_three_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testThreeEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[_models.ModelTwo] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelTwo, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelTwo:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelTwo and ouputs ModelTwo.
-
-        :param parameter_one: A ModelTwo parameter. Is either a ModelTwo type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo or IO[bytes]
-        :return: ModelTwo or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v2.models.ModelTwo
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelTwo] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelTwo")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelTwo", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
-
-    @distributed_trace
-    def test_three(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestThree should be in OperationGroupOneOperations. Takes in ModelTwo.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_three_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_two_operations.py
deleted file mode 100644
index 188a9a3963e..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,122 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(*, parameter_one: bool, **kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["parameterOne"] = _SERIALIZER.query("parameter_one", parameter_one, "bool")
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v2.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_four(self, parameter_one: bool, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param parameter_one: A boolean parameter. Required.
-        :type parameter_one: bool
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_four_request(
-            parameter_one=parameter_one,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_configuration.py
deleted file mode 100644
index 8bfcff20a50..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMChallengeAuthenticationPolicy, ARMHttpLoggingPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "TokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.RedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.RetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = ARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_metadata.json b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_metadata.json
deleted file mode 100644
index 3217a564093..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_metadata.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-    "chosen_version": "3.0.0",
-    "total_api_version_list": ["3.0.0"],
-    "client": {
-        "name": "MultiapiServiceClient",
-        "filename": "_multiapi_service_client",
-        "description": "Service client for multiapi client testing.",
-        "host_value": null,
-        "parameterized_host_template": null,
-        "azure_arm": true,
-        "has_public_lro_operations": false,
-        "client-side-validation": false,
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"ARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \"._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\", \"Optional\"]}}, \"regular\": {\"sdkcore\": {\"azure.mgmt.core\": [\"AsyncARMPipelineClient\"], \"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"AsyncARMAutoResourceProviderRegistrationPolicy\"], \"azure.core.settings\": [\"settings\"], \"azure.mgmt.core.tools\": [\"get_arm_endpoints\"], \"azure.profiles\": [\"KnownProfiles\", \"ProfileDefinition\"], \"azure.profiles.multiapiclient\": [\"MultiApiClientMixin\"]}, \"stdlib\": {\"typing\": [\"Optional\", \"cast\"], \"typing_extensions\": [\"Self\"]}, \"local\": {\"._configuration\": [\"MultiapiServiceClientConfiguration\"], \".._utils.serialization\": [\"Deserializer\", \"Serializer\"], \"._operations_mixin\": [\"MultiapiServiceClientOperationsMixin\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "global_parameters": {
-        "sync": {
-            "credential": {
-                "signature": "credential: \"TokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials.TokenCredential",
-                "required": true,
-                "method_location": "positional"
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false,
-                "method_location": "keywordOnly"
-            }
-        },
-        "async": {
-            "credential": {
-                "signature": "credential: \"AsyncTokenCredential\",",
-                "description": "Credential needed for the client to connect to Azure. Required.",
-                "docstring_type": "~azure.core.credentials_async.AsyncTokenCredential",
-                "required": true
-            },
-            "cloud_setting": {
-                "signature": "cloud_setting: Optional[\"AzureClouds\"] = None,",
-                "description": "The cloud setting for which to get the ARM endpoint. Default value is None.",
-                "docstring_type": "~azure.core.AzureClouds",
-                "required": false
-            }
-        },
-        "constant": {
-        },
-        "call": "credential, cloud_setting",
-        "service_client_specific": {
-            "sync": {
-                "api_version": {
-                    "signature": "api_version: Optional[str]=None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles=KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            },
-            "async": {
-                "api_version": {
-                    "signature": "api_version: Optional[str] = None,",
-                    "description": "API version to use if no profile is provided, or if missing in profile.",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "base_url": {
-                    "signature": "base_url: Optional[str] = None,",
-                    "description": "Service URL",
-                    "docstring_type": "str",
-                    "required": false,
-                    "method_location": "positional"
-                },
-                "profile": {
-                    "signature": "profile: KnownProfiles = KnownProfiles.default,",
-                    "description": "A profile definition, from KnownProfiles to dict.",
-                    "docstring_type": "azure.profiles.KnownProfiles",
-                    "required": false,
-                    "method_location": "positional"
-                }
-            }
-        }
-    },
-    "config": {
-        "credential": true,
-        "credential_scopes": ["https://management.azure.com/.default"],
-        "credential_call_sync": "ARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "credential_call_async": "AsyncARMChallengeAuthenticationPolicy(self.credential, *self.credential_scopes, **kwargs)",
-        "sync_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMChallengeAuthenticationPolicy\", \"ARMHttpLoggingPolicy\"]}, \"local\": {\"._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials\": [\"TokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}",
-        "async_imports": "{\"regular\": {\"sdkcore\": {\"azure.core.pipeline\": [\"policies\"], \"azure.mgmt.core.policies\": [\"ARMHttpLoggingPolicy\", \"AsyncARMChallengeAuthenticationPolicy\"]}, \"local\": {\".._version\": [\"VERSION\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}}, \"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}}, \"typing\": {\"sdkcore\": {\"azure.core.credentials_async\": [\"AsyncTokenCredential\"], \"azure.core\": [\"AzureClouds\"]}}}"
-    },
-    "operation_groups": {
-        "operation_group_one": "OperationGroupOneOperations",
-        "operation_group_two": "OperationGroupTwoOperations"
-    },
-    "operation_mixins": {
-        "sync_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.paging\": [\"ItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\".\": [[\"models\", \"_models\"]]}}}",
-        "async_imports": "{\"conditional\": {\"stdlib\": {\"typing\": [\"Any\"]}, \"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}}, \"regular\": {\"sdkcore\": {\"azure.core.async_paging\": [\"AsyncItemPaged\"]}, \"stdlib\": {\"typing\": [\"Optional\"]}, \"local\": {\"..\": [[\"models\", \"_models\"]]}}}",
-        "sync_mixin_typing_definitions": "",
-        "async_mixin_typing_definitions": "",
-        "operations": {
-            "test_paging" : {
-                "sync": {
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e ItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype: ~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                },
-                "async": {
-                    "coroutine": false,
-                    "signature": "def test_paging(\n    self,\n    **kwargs: Any\n) -\u003e AsyncItemPaged[\"_models.ModelThree\"]:\n",
-                    "doc": "\"\"\"Returns ModelThree with optionalProperty \u0027paged\u0027.\n\n:return: An iterator like instance of either ModelThree or the result of cls(response)\n:rtype:\n ~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "**kwargs"
-                }
-            },
-            "test_different_calls" : {
-                "sync": {
-                    "signature": "def test_different_calls(  # pylint: disable=inconsistent-return-statements\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                },
-                "async": {
-                    "coroutine": true,
-                    "signature": "async def test_different_calls(\n    self,\n    greeting_in_english: str,\n    greeting_in_chinese: Optional[str] = None,\n    greeting_in_french: Optional[str] = None,\n    **kwargs: Any\n) -\u003e None:\n",
-                    "doc": "\"\"\"Has added parameters across the API versions.\n\n:param greeting_in_english: pass in \u0027hello\u0027 to pass test. Required.\n:type greeting_in_english: str\n:param greeting_in_chinese: pass in \u0027nihao\u0027 to pass test. Default value is None.\n:type greeting_in_chinese: str\n:param greeting_in_french: pass in \u0027bonjour\u0027 to pass test. Default value is None.\n:type greeting_in_french: str\n:return: None or the result of cls(response)\n:rtype: None\n:raises ~azure.core.exceptions.HttpResponseError:\n\"\"\"",
-                    "call": "greeting_in_english, greeting_in_chinese, greeting_in_french, **kwargs"
-                }
-            }
-        }
-    }
-}
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_multiapi_service_client.py
deleted file mode 100644
index ade20fb60af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_multiapi_service_client.py
+++ /dev/null
@@ -1,129 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.settings import settings
-from azure.mgmt.core import ARMPipelineClient
-from azure.mgmt.core.policies import ARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from . import models as _models
-from ._configuration import MultiapiServiceClientConfiguration
-from ._utils.serialization import Deserializer, Serializer
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials import TokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v3.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapiwithsubmodule.submodule.v3.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials.TokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "TokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                ARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: ARMPipelineClient = ARMPipelineClient(base_url=cast(str, base_url), policies=_policies, **kwargs)
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(self, request: HttpRequest, *, stream: bool = False, **kwargs: Any) -> HttpResponse:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = client._send_request(request)
-        <HttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.HttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    def close(self) -> None:
-        self._client.close()
-
-    def __enter__(self) -> Self:
-        self._client.__enter__()
-        return self
-
-    def __exit__(self, *exc_details: Any) -> None:
-        self._client.__exit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/__init__.py
deleted file mode 100644
index 0af9b28f660..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/serialization.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/serialization.py
deleted file mode 100644
index f5187701d7b..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/serialization.py
+++ /dev/null
@@ -1,2032 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression,too-many-lines
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-# pyright: reportUnnecessaryTypeIgnoreComment=false
-
-from base64 import b64decode, b64encode
-import calendar
-import datetime
-import decimal
-import email
-from enum import Enum
-import json
-import logging
-import re
-import sys
-import codecs
-from typing import (
-    Dict,
-    Any,
-    cast,
-    Optional,
-    Union,
-    AnyStr,
-    IO,
-    Mapping,
-    Callable,
-    MutableMapping,
-    List,
-)
-
-try:
-    from urllib import quote  # type: ignore
-except ImportError:
-    from urllib.parse import quote
-import xml.etree.ElementTree as ET
-
-import isodate  # type: ignore
-from typing_extensions import Self
-
-from azure.core.exceptions import DeserializationError, SerializationError
-from azure.core.serialization import NULL as CoreNull
-
-_BOM = codecs.BOM_UTF8.decode(encoding="utf-8")
-
-JSON = MutableMapping[str, Any]
-
-
-class RawDeserializer:
-
-    # Accept "text" because we're open minded people...
-    JSON_REGEXP = re.compile(r"^(application|text)/([a-z+.]+\+)?json$")
-
-    # Name used in context
-    CONTEXT_NAME = "deserialized_data"
-
-    @classmethod
-    def deserialize_from_text(cls, data: Optional[Union[AnyStr, IO]], content_type: Optional[str] = None) -> Any:
-        """Decode data according to content-type.
-
-        Accept a stream of data as well, but will be load at once in memory for now.
-
-        If no content-type, will return the string version (not bytes, not stream)
-
-        :param data: Input, could be bytes or stream (will be decoded with UTF8) or text
-        :type data: str or bytes or IO
-        :param str content_type: The content type.
-        :return: The deserialized data.
-        :rtype: object
-        """
-        if hasattr(data, "read"):
-            # Assume a stream
-            data = cast(IO, data).read()
-
-        if isinstance(data, bytes):
-            data_as_str = data.decode(encoding="utf-8-sig")
-        else:
-            # Explain to mypy the correct type.
-            data_as_str = cast(str, data)
-
-            # Remove Byte Order Mark if present in string
-            data_as_str = data_as_str.lstrip(_BOM)
-
-        if content_type is None:
-            return data
-
-        if cls.JSON_REGEXP.match(content_type):
-            try:
-                return json.loads(data_as_str)
-            except ValueError as err:
-                raise DeserializationError("JSON is invalid: {}".format(err), err) from err
-        elif "xml" in (content_type or []):
-            try:
-
-                try:
-                    if isinstance(data, unicode):  # type: ignore
-                        # If I'm Python 2.7 and unicode XML will scream if I try a "fromstring" on unicode string
-                        data_as_str = data_as_str.encode(encoding="utf-8")  # type: ignore
-                except NameError:
-                    pass
-
-                return ET.fromstring(data_as_str)  # nosec
-            except ET.ParseError as err:
-                # It might be because the server has an issue, and returned JSON with
-                # content-type XML....
-                # So let's try a JSON load, and if it's still broken
-                # let's flow the initial exception
-                def _json_attemp(data):
-                    try:
-                        return True, json.loads(data)
-                    except ValueError:
-                        return False, None  # Don't care about this one
-
-                success, json_result = _json_attemp(data)
-                if success:
-                    return json_result
-                # If i'm here, it's not JSON, it's not XML, let's scream
-                # and raise the last context in this block (the XML exception)
-                # The function hack is because Py2.7 messes up with exception
-                # context otherwise.
-                _LOGGER.critical("Wasn't XML not JSON, failing")
-                raise DeserializationError("XML is invalid") from err
-        elif content_type.startswith("text/"):
-            return data_as_str
-        raise DeserializationError("Cannot deserialize content-type: {}".format(content_type))
-
-    @classmethod
-    def deserialize_from_http_generics(cls, body_bytes: Optional[Union[AnyStr, IO]], headers: Mapping) -> Any:
-        """Deserialize from HTTP response.
-
-        Use bytes and headers to NOT use any requests/aiohttp or whatever
-        specific implementation.
-        Headers will tested for "content-type"
-
-        :param bytes body_bytes: The body of the response.
-        :param dict headers: The headers of the response.
-        :returns: The deserialized data.
-        :rtype: object
-        """
-        # Try to use content-type from headers if available
-        content_type = None
-        if "content-type" in headers:
-            content_type = headers["content-type"].split(";")[0].strip().lower()
-        # Ouch, this server did not declare what it sent...
-        # Let's guess it's JSON...
-        # Also, since Autorest was considering that an empty body was a valid JSON,
-        # need that test as well....
-        else:
-            content_type = "application/json"
-
-        if body_bytes:
-            return cls.deserialize_from_text(body_bytes, content_type)
-        return None
-
-
-_LOGGER = logging.getLogger(__name__)
-
-try:
-    _long_type = long  # type: ignore
-except NameError:
-    _long_type = int
-
-TZ_UTC = datetime.timezone.utc
-
-_FLATTEN = re.compile(r"(?<!\\)\.")
-
-
-def attribute_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the Python attribute.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A key using attribute name
-    :rtype: str
-    """
-    return (key, value)
-
-
-def full_restapi_key_transformer(key, attr_desc, value):  # pylint: disable=unused-argument
-    """A key transformer that returns the full RestAPI key path.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: A list of keys using RestAPI syntax.
-    :rtype: list
-    """
-    keys = _FLATTEN.split(attr_desc["key"])
-    return ([_decode_attribute_map_key(k) for k in keys], value)
-
-
-def last_restapi_key_transformer(key, attr_desc, value):
-    """A key transformer that returns the last RestAPI key.
-
-    :param str key: The attribute name
-    :param dict attr_desc: The attribute metadata
-    :param object value: The value
-    :returns: The last RestAPI key.
-    :rtype: str
-    """
-    key, value = full_restapi_key_transformer(key, attr_desc, value)
-    return (key[-1], value)
-
-
-def _create_xml_node(tag, prefix=None, ns=None):
-    """Create a XML node.
-
-    :param str tag: The tag name
-    :param str prefix: The prefix
-    :param str ns: The namespace
-    :return: The XML node
-    :rtype: xml.etree.ElementTree.Element
-    """
-    if prefix and ns:
-        ET.register_namespace(prefix, ns)
-    if ns:
-        return ET.Element("{" + ns + "}" + tag)
-    return ET.Element(tag)
-
-
-class Model:
-    """Mixin for all client request body/response body models to support
-    serialization and deserialization.
-    """
-
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
-
-    def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
-        for k in kwargs:  # pylint: disable=consider-using-dict-items
-            if k not in self._attribute_map:
-                _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
-            elif k in self._validation and self._validation[k].get("readonly", False):
-                _LOGGER.warning("Readonly attribute %s will be ignored in class %s", k, self.__class__)
-            else:
-                setattr(self, k, kwargs[k])
-
-    def __eq__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are equal
-        :rtype: bool
-        """
-        if isinstance(other, self.__class__):
-            return self.__dict__ == other.__dict__
-        return False
-
-    def __ne__(self, other: Any) -> bool:
-        """Compare objects by comparing all attributes.
-
-        :param object other: The object to compare
-        :returns: True if objects are not equal
-        :rtype: bool
-        """
-        return not self.__eq__(other)
-
-    def __str__(self) -> str:
-        return str(self.__dict__)
-
-    @classmethod
-    def enable_additional_properties_sending(cls) -> None:
-        cls._attribute_map["additional_properties"] = {"key": "", "type": "{object}"}
-
-    @classmethod
-    def is_xml_model(cls) -> bool:
-        try:
-            cls._xml_map  # type: ignore
-        except AttributeError:
-            return False
-        return True
-
-    @classmethod
-    def _create_xml_node(cls):
-        """Create XML node.
-
-        :returns: The XML node
-        :rtype: xml.etree.ElementTree.Element
-        """
-        try:
-            xml_map = cls._xml_map  # type: ignore
-        except AttributeError:
-            xml_map = {}
-
-        return _create_xml_node(xml_map.get("name", cls.__name__), xml_map.get("prefix", None), xml_map.get("ns", None))
-
-    def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
-        """Return the JSON that would be sent to server from this model.
-
-        This is an alias to `as_dict(full_restapi_key_transformer, keep_readonly=False)`.
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, keep_readonly=keep_readonly, **kwargs
-        )
-
-    def as_dict(
-        self,
-        keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
-        **kwargs: Any
-    ) -> JSON:
-        """Return a dict that can be serialized using json.dump.
-
-        Advanced usage might optionally use a callback as parameter:
-
-        .. code::python
-
-            def my_key_transformer(key, attr_desc, value):
-                return key
-
-        Key is the attribute name used in Python. Attr_desc
-        is a dict of metadata. Currently contains 'type' with the
-        msrest type and 'key' with the RestAPI encoded key.
-        Value is the current value in this object.
-
-        The string returned will be used to serialize the key.
-        If the return type is a list, this is considered hierarchical
-        result dict.
-
-        See the three examples in this file:
-
-        - attribute_transformer
-        - full_restapi_key_transformer
-        - last_restapi_key_transformer
-
-        If you want XML serialization, you can pass the kwargs is_xml=True.
-
-        :param bool keep_readonly: If you want to serialize the readonly attributes
-        :param function key_transformer: A key transformer function.
-        :returns: A dict JSON compatible object
-        :rtype: dict
-        """
-        serializer = Serializer(self._infer_class_models())
-        return serializer._serialize(  # type: ignore # pylint: disable=protected-access
-            self, key_transformer=key_transformer, keep_readonly=keep_readonly, **kwargs
-        )
-
-    @classmethod
-    def _infer_class_models(cls):
-        try:
-            str_models = cls.__module__.rsplit(".", 1)[0]
-            models = sys.modules[str_models]
-            client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-            if cls.__name__ not in client_models:
-                raise ValueError("Not Autorest generated code")
-        except Exception:  # pylint: disable=broad-exception-caught
-            # Assume it's not Autorest generated (tests?). Add ourselves as dependencies.
-            client_models = {cls.__name__: cls}
-        return client_models
-
-    @classmethod
-    def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
-        """Parse a str using the RestAPI syntax and return a model.
-
-        :param str data: A str using RestAPI structure. JSON by default.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def from_dict(
-        cls,
-        data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
-        content_type: Optional[str] = None,
-    ) -> Self:
-        """Parse a dict using given key extractor return a model.
-
-        By default consider key
-        extractors (rest_key_case_insensitive_extractor, attribute_key_case_insensitive_extractor
-        and last_rest_key_case_insensitive_extractor)
-
-        :param dict data: A dict using RestAPI structure
-        :param function key_extractors: A key extractor function.
-        :param str content_type: JSON by default, set application/xml if XML.
-        :returns: An instance of this model
-        :raises DeserializationError: if something went wrong
-        :rtype: Self
-        """
-        deserializer = Deserializer(cls._infer_class_models())
-        deserializer.key_extractors = (  # type: ignore
-            [  # type: ignore
-                attribute_key_case_insensitive_extractor,
-                rest_key_case_insensitive_extractor,
-                last_rest_key_case_insensitive_extractor,
-            ]
-            if key_extractors is None
-            else key_extractors
-        )
-        return deserializer(cls.__name__, data, content_type=content_type)  # type: ignore
-
-    @classmethod
-    def _flatten_subtype(cls, key, objects):
-        if "_subtype_map" not in cls.__dict__:
-            return {}
-        result = dict(cls._subtype_map[key])
-        for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
-        return result
-
-    @classmethod
-    def _classify(cls, response, objects):
-        """Check the class _subtype_map for any child classes.
-        We want to ignore any inherited _subtype_maps.
-
-        :param dict response: The initial data
-        :param dict objects: The class objects
-        :returns: The class to be used
-        :rtype: class
-        """
-        for subtype_key in cls.__dict__.get("_subtype_map", {}).keys():
-            subtype_value = None
-
-            if not isinstance(response, ET.Element):
-                rest_api_response_key = cls._get_rest_key_parts(subtype_key)[-1]
-                subtype_value = response.get(rest_api_response_key, None) or response.get(subtype_key, None)
-            else:
-                subtype_value = xml_key_extractor(subtype_key, cls._attribute_map[subtype_key], response)
-            if subtype_value:
-                # Try to match base class. Can be class name only
-                # (bug to fix in Autorest to support x-ms-discriminator-name)
-                if cls.__name__ == subtype_value:
-                    return cls
-                flatten_mapping_type = cls._flatten_subtype(subtype_key, objects)
-                try:
-                    return objects[flatten_mapping_type[subtype_value]]  # type: ignore
-                except KeyError:
-                    _LOGGER.warning(
-                        "Subtype value %s has no mapping, use base class %s.",
-                        subtype_value,
-                        cls.__name__,
-                    )
-                    break
-            else:
-                _LOGGER.warning("Discriminator %s is absent or null, use base class %s.", subtype_key, cls.__name__)
-                break
-        return cls
-
-    @classmethod
-    def _get_rest_key_parts(cls, attr_key):
-        """Get the RestAPI key of this attr, split it and decode part
-        :param str attr_key: Attribute key must be in attribute_map.
-        :returns: A list of RestAPI part
-        :rtype: list
-        """
-        rest_split_key = _FLATTEN.split(cls._attribute_map[attr_key]["key"])
-        return [_decode_attribute_map_key(key_part) for key_part in rest_split_key]
-
-
-def _decode_attribute_map_key(key):
-    """This decode a key in an _attribute_map to the actual key we want to look at
-    inside the received data.
-
-    :param str key: A key string from the generated code
-    :returns: The decoded key
-    :rtype: str
-    """
-    return key.replace("\\.", ".")
-
-
-class Serializer:  # pylint: disable=too-many-public-methods
-    """Request object model serializer."""
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    _xml_basic_types_serializers = {"bool": lambda x: str(x).lower()}
-    days = {0: "Mon", 1: "Tue", 2: "Wed", 3: "Thu", 4: "Fri", 5: "Sat", 6: "Sun"}
-    months = {
-        1: "Jan",
-        2: "Feb",
-        3: "Mar",
-        4: "Apr",
-        5: "May",
-        6: "Jun",
-        7: "Jul",
-        8: "Aug",
-        9: "Sep",
-        10: "Oct",
-        11: "Nov",
-        12: "Dec",
-    }
-    validation = {
-        "min_length": lambda x, y: len(x) < y,
-        "max_length": lambda x, y: len(x) > y,
-        "minimum": lambda x, y: x < y,
-        "maximum": lambda x, y: x > y,
-        "minimum_ex": lambda x, y: x <= y,
-        "maximum_ex": lambda x, y: x >= y,
-        "min_items": lambda x, y: len(x) < y,
-        "max_items": lambda x, y: len(x) > y,
-        "pattern": lambda x, y: not re.match(y, x, re.UNICODE),
-        "unique": lambda x, y: len(x) != len(set(x)),
-        "multiple": lambda x, y: x % y != 0,
-    }
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.serialize_type = {
-            "iso-8601": Serializer.serialize_iso,
-            "rfc-1123": Serializer.serialize_rfc,
-            "unix-time": Serializer.serialize_unix,
-            "duration": Serializer.serialize_duration,
-            "date": Serializer.serialize_date,
-            "time": Serializer.serialize_time,
-            "decimal": Serializer.serialize_decimal,
-            "long": Serializer.serialize_long,
-            "bytearray": Serializer.serialize_bytearray,
-            "base64": Serializer.serialize_base64,
-            "object": self.serialize_object,
-            "[]": self.serialize_iter,
-            "{}": self.serialize_dict,
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_transformer = full_restapi_key_transformer
-        self.client_side_validation = True
-
-    def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, too-many-statements, too-many-locals
-        self, target_obj, data_type=None, **kwargs
-    ):
-        """Serialize data into a string according to type.
-
-        :param object target_obj: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, dict
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        """
-        key_transformer = kwargs.get("key_transformer", self.key_transformer)
-        keep_readonly = kwargs.get("keep_readonly", False)
-        if target_obj is None:
-            return None
-
-        attr_name = None
-        class_name = target_obj.__class__.__name__
-
-        if data_type:
-            return self.serialize_data(target_obj, data_type, **kwargs)
-
-        if not hasattr(target_obj, "_attribute_map"):
-            data_type = type(target_obj).__name__
-            if data_type in self.basic_types.values():
-                return self.serialize_data(target_obj, data_type, **kwargs)
-
-        # Force "is_xml" kwargs if we detect a XML model
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            is_xml_model_serialization = kwargs.setdefault("is_xml", target_obj.is_xml_model())
-
-        serialized = {}
-        if is_xml_model_serialization:
-            serialized = target_obj._create_xml_node()  # pylint: disable=protected-access
-        try:
-            attributes = target_obj._attribute_map  # pylint: disable=protected-access
-            for attr, attr_desc in attributes.items():
-                attr_name = attr
-                if not keep_readonly and target_obj._validation.get(  # pylint: disable=protected-access
-                    attr_name, {}
-                ).get("readonly", False):
-                    continue
-
-                if attr_name == "additional_properties" and attr_desc["key"] == "":
-                    if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
-                    continue
-                try:
-
-                    orig_attr = getattr(target_obj, attr)
-                    if is_xml_model_serialization:
-                        pass  # Don't provide "transformer" for XML for now. Keep "orig_attr"
-                    else:  # JSON
-                        keys, orig_attr = key_transformer(attr, attr_desc.copy(), orig_attr)
-                        keys = keys if isinstance(keys, list) else [keys]
-
-                    kwargs["serialization_ctxt"] = attr_desc
-                    new_attr = self.serialize_data(orig_attr, attr_desc["type"], **kwargs)
-
-                    if is_xml_model_serialization:
-                        xml_desc = attr_desc.get("xml", {})
-                        xml_name = xml_desc.get("name", attr_desc["key"])
-                        xml_prefix = xml_desc.get("prefix", None)
-                        xml_ns = xml_desc.get("ns", None)
-                        if xml_desc.get("attr", False):
-                            if xml_ns:
-                                ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-                            serialized.set(xml_name, new_attr)  # type: ignore
-                            continue
-                        if xml_desc.get("text", False):
-                            serialized.text = new_attr  # type: ignore
-                            continue
-                        if isinstance(new_attr, list):
-                            serialized.extend(new_attr)  # type: ignore
-                        elif isinstance(new_attr, ET.Element):
-                            # If the down XML has no XML/Name,
-                            # we MUST replace the tag with the local tag. But keeping the namespaces.
-                            if "name" not in getattr(orig_attr, "_xml_map", {}):
-                                splitted_tag = new_attr.tag.split("}")
-                                if len(splitted_tag) == 2:  # Namespace
-                                    new_attr.tag = "}".join([splitted_tag[0], xml_name])
-                                else:
-                                    new_attr.tag = xml_name
-                            serialized.append(new_attr)  # type: ignore
-                        else:  # That's a basic type
-                            # Integrate namespace if necessary
-                            local_node = _create_xml_node(xml_name, xml_prefix, xml_ns)
-                            local_node.text = str(new_attr)
-                            serialized.append(local_node)  # type: ignore
-                    else:  # JSON
-                        for k in reversed(keys):  # type: ignore
-                            new_attr = {k: new_attr}
-
-                        _new_attr = new_attr
-                        _serialized = serialized
-                        for k in keys:  # type: ignore
-                            if k not in _serialized:
-                                _serialized.update(_new_attr)  # type: ignore
-                            _new_attr = _new_attr[k]  # type: ignore
-                            _serialized = _serialized[k]
-                except ValueError as err:
-                    if isinstance(err, SerializationError):
-                        raise
-
-        except (AttributeError, KeyError, TypeError) as err:
-            msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
-            raise SerializationError(msg) from err
-        return serialized
-
-    def body(self, data, data_type, **kwargs):
-        """Serialize data intended for a request body.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: dict
-        :raises SerializationError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized request body
-        """
-
-        # Just in case this is a dict
-        internal_data_type_str = data_type.strip("[]{}")
-        internal_data_type = self.dependencies.get(internal_data_type_str, None)
-        try:
-            is_xml_model_serialization = kwargs["is_xml"]
-        except KeyError:
-            if internal_data_type and issubclass(internal_data_type, Model):
-                is_xml_model_serialization = kwargs.setdefault("is_xml", internal_data_type.is_xml_model())
-            else:
-                is_xml_model_serialization = False
-        if internal_data_type and not isinstance(internal_data_type, Enum):
-            try:
-                deserializer = Deserializer(self.dependencies)
-                # Since it's on serialization, it's almost sure that format is not JSON REST
-                # We're not able to deal with additional properties for now.
-                deserializer.additional_properties_detection = False
-                if is_xml_model_serialization:
-                    deserializer.key_extractors = [  # type: ignore
-                        attribute_key_case_insensitive_extractor,
-                    ]
-                else:
-                    deserializer.key_extractors = [
-                        rest_key_case_insensitive_extractor,
-                        attribute_key_case_insensitive_extractor,
-                        last_rest_key_case_insensitive_extractor,
-                    ]
-                data = deserializer._deserialize(data_type, data)  # pylint: disable=protected-access
-            except DeserializationError as err:
-                raise SerializationError("Unable to build a model: " + str(err)) from err
-
-        return self._serialize(data, data_type, **kwargs)
-
-    def url(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL path.
-
-        :param str name: The name of the URL path parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :returns: The serialized URL path
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        """
-        try:
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-                output = output.replace("{", quote("{")).replace("}", quote("}"))
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return output
-
-    def query(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a URL query.
-
-        :param str name: The name of the query parameter.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str, list
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized query parameter
-        """
-        try:
-            # Treat the list aside, since we don't want to encode the div separator
-            if data_type.startswith("["):
-                internal_data_type = data_type[1:-1]
-                do_quote = not kwargs.get("skip_quote", False)
-                return self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs)
-
-            # Not a list, regular serialization
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-            if kwargs.get("skip_quote") is True:
-                output = str(output)
-            else:
-                output = quote(str(output), safe="")
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def header(self, name, data, data_type, **kwargs):
-        """Serialize data intended for a request header.
-
-        :param str name: The name of the header.
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :rtype: str
-        :raises TypeError: if serialization fails.
-        :raises ValueError: if data is None
-        :returns: The serialized header
-        """
-        try:
-            if data_type in ["[str]"]:
-                data = ["" if d is None else d for d in data]
-
-            output = self.serialize_data(data, data_type, **kwargs)
-            if data_type == "bool":
-                output = json.dumps(output)
-        except SerializationError as exc:
-            raise TypeError("{} must be type {}.".format(name, data_type)) from exc
-        return str(output)
-
-    def serialize_data(self, data, data_type, **kwargs):
-        """Serialize generic data according to supplied data type.
-
-        :param object data: The data to be serialized.
-        :param str data_type: The type to be serialized from.
-        :raises AttributeError: if required data is None.
-        :raises ValueError: if data is None
-        :raises SerializationError: if serialization fails.
-        :returns: The serialized data.
-        :rtype: str, int, float, bool, dict, list
-        """
-        if data is None:
-            raise ValueError("No value for given attribute")
-
-        try:
-            if data is CoreNull:
-                return None
-            if data_type in self.basic_types.values():
-                return self.serialize_basic(data, data_type, **kwargs)
-
-            if data_type in self.serialize_type:
-                return self.serialize_type[data_type](data, **kwargs)
-
-            # If dependencies is empty, try with current data class
-            # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
-            if issubclass(enum_type, Enum):
-                return Serializer.serialize_enum(data, enum_obj=enum_type)
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.serialize_type:
-                return self.serialize_type[iter_type](data, data_type[1:-1], **kwargs)
-
-        except (ValueError, TypeError) as err:
-            msg = "Unable to serialize value: {!r} as type: {!r}."
-            raise SerializationError(msg.format(data, data_type)) from err
-        return self._serialize(data, **kwargs)
-
-    @classmethod
-    def _get_custom_serializers(cls, data_type, **kwargs):  # pylint: disable=inconsistent-return-statements
-        custom_serializer = kwargs.get("basic_types_serializers", {}).get(data_type)
-        if custom_serializer:
-            return custom_serializer
-        if kwargs.get("is_xml", False):
-            return cls._xml_basic_types_serializers.get(data_type)
-
-    @classmethod
-    def serialize_basic(cls, data, data_type, **kwargs):
-        """Serialize basic builting data type.
-        Serializes objects to str, int, float or bool.
-
-        Possible kwargs:
-        - basic_types_serializers dict[str, callable] : If set, use the callable as serializer
-        - is_xml bool : If set, use xml_basic_types_serializers
-
-        :param obj data: Object to be serialized.
-        :param str data_type: Type of object in the iterable.
-        :rtype: str, int, float, bool
-        :return: serialized object
-        """
-        custom_serializer = cls._get_custom_serializers(data_type, **kwargs)
-        if custom_serializer:
-            return custom_serializer(data)
-        if data_type == "str":
-            return cls.serialize_unicode(data)
-        return eval(data_type)(data)  # nosec # pylint: disable=eval-used
-
-    @classmethod
-    def serialize_unicode(cls, data):
-        """Special handling for serializing unicode strings in Py2.
-        Encode to UTF-8 if unicode, otherwise handle as a str.
-
-        :param str data: Object to be serialized.
-        :rtype: str
-        :return: serialized object
-        """
-        try:  # If I received an enum, return its value
-            return data.value
-        except AttributeError:
-            pass
-
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                # Don't change it, JSON and XML ElementTree are totally able
-                # to serialize correctly u'' strings
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    def serialize_iter(self, data, iter_type, div=None, **kwargs):
-        """Serialize iterable.
-
-        Supported kwargs:
-        - serialization_ctxt dict : The current entry of _attribute_map, or same format.
-          serialization_ctxt['type'] should be same as data_type.
-        - is_xml bool : If set, serialize as XML
-
-        :param list data: Object to be serialized.
-        :param str iter_type: Type of object in the iterable.
-        :param str div: If set, this str will be used to combine the elements
-         in the iterable into a combined string. Default is 'None'.
-        Defaults to False.
-        :rtype: list, str
-        :return: serialized iterable
-        """
-        if isinstance(data, str):
-            raise SerializationError("Refuse str type as a valid iter type.")
-
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        is_xml = kwargs.get("is_xml", False)
-
-        serialized = []
-        for d in data:
-            try:
-                serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized.append(None)
-
-        if kwargs.get("do_quote", False):
-            serialized = ["" if s is None else quote(str(s), safe="") for s in serialized]
-
-        if div:
-            serialized = ["" if s is None else str(s) for s in serialized]
-            serialized = div.join(serialized)
-
-        if "xml" in serialization_ctxt or is_xml:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt.get("xml", {})
-            xml_name = xml_desc.get("name")
-            if not xml_name:
-                xml_name = serialization_ctxt["key"]
-
-            # Create a wrap node if necessary (use the fact that Element and list have "append")
-            is_wrapped = xml_desc.get("wrapped", False)
-            node_name = xml_desc.get("itemsName", xml_name)
-            if is_wrapped:
-                final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            else:
-                final_result = []
-            # All list elements to "local_node"
-            for el in serialized:
-                if isinstance(el, ET.Element):
-                    el_node = el
-                else:
-                    el_node = _create_xml_node(node_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-                    if el is not None:  # Otherwise it writes "None" :-p
-                        el_node.text = str(el)
-                final_result.append(el_node)
-            return final_result
-        return serialized
-
-    def serialize_dict(self, attr, dict_type, **kwargs):
-        """Serialize a dictionary of objects.
-
-        :param dict attr: Object to be serialized.
-        :param str dict_type: Type of object in the dictionary.
-        :rtype: dict
-        :return: serialized dictionary
-        """
-        serialization_ctxt = kwargs.get("serialization_ctxt", {})
-        serialized = {}
-        for key, value in attr.items():
-            try:
-                serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError as err:
-                if isinstance(err, SerializationError):
-                    raise
-                serialized[self.serialize_unicode(key)] = None
-
-        if "xml" in serialization_ctxt:
-            # XML serialization is more complicated
-            xml_desc = serialization_ctxt["xml"]
-            xml_name = xml_desc["name"]
-
-            final_result = _create_xml_node(xml_name, xml_desc.get("prefix", None), xml_desc.get("ns", None))
-            for key, value in serialized.items():
-                ET.SubElement(final_result, key).text = value
-            return final_result
-
-        return serialized
-
-    def serialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Serialize a generic object.
-        This will be handled as a dictionary. If object passed in is not
-        a basic type (str, int, float, dict, list) it will simply be
-        cast to str.
-
-        :param dict attr: Object to be serialized.
-        :rtype: dict or str
-        :return: serialized object
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            return attr
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.serialize_basic(attr, self.basic_types[obj_type], **kwargs)
-        if obj_type is _long_type:
-            return self.serialize_long(attr)
-        if obj_type is str:
-            return self.serialize_unicode(attr)
-        if obj_type is datetime.datetime:
-            return self.serialize_iso(attr)
-        if obj_type is datetime.date:
-            return self.serialize_date(attr)
-        if obj_type is datetime.time:
-            return self.serialize_time(attr)
-        if obj_type is datetime.timedelta:
-            return self.serialize_duration(attr)
-        if obj_type is decimal.Decimal:
-            return self.serialize_decimal(attr)
-
-        # If it's a model or I know this dependency, serialize as a Model
-        if obj_type in self.dependencies.values() or isinstance(attr, Model):
-            return self._serialize(attr)
-
-        if obj_type == dict:
-            serialized = {}
-            for key, value in attr.items():
-                try:
-                    serialized[self.serialize_unicode(key)] = self.serialize_object(value, **kwargs)
-                except ValueError:
-                    serialized[self.serialize_unicode(key)] = None
-            return serialized
-
-        if obj_type == list:
-            serialized = []
-            for obj in attr:
-                try:
-                    serialized.append(self.serialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return serialized
-        return str(attr)
-
-    @staticmethod
-    def serialize_enum(attr, enum_obj=None):
-        try:
-            result = attr.value
-        except AttributeError:
-            result = attr
-        try:
-            enum_obj(result)  # type: ignore
-            return result
-        except ValueError as exc:
-            for enum_value in enum_obj:  # type: ignore
-                if enum_value.value.lower() == str(attr).lower():
-                    return enum_value.value
-            error = "{!r} is not valid value for enum {!r}"
-            raise SerializationError(error.format(attr, enum_obj)) from exc
-
-    @staticmethod
-    def serialize_bytearray(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize bytearray into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        return b64encode(attr).decode()
-
-    @staticmethod
-    def serialize_base64(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize str into base-64 string.
-
-        :param str attr: Object to be serialized.
-        :rtype: str
-        :return: serialized base64
-        """
-        encoded = b64encode(attr).decode("ascii")
-        return encoded.strip("=").replace("+", "-").replace("/", "_")
-
-    @staticmethod
-    def serialize_decimal(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Decimal object to float.
-
-        :param decimal attr: Object to be serialized.
-        :rtype: float
-        :return: serialized decimal
-        """
-        return float(attr)
-
-    @staticmethod
-    def serialize_long(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize long (Py2) or int (Py3).
-
-        :param int attr: Object to be serialized.
-        :rtype: int/long
-        :return: serialized long
-        """
-        return _long_type(attr)
-
-    @staticmethod
-    def serialize_date(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Date object into ISO-8601 formatted string.
-
-        :param Date attr: Object to be serialized.
-        :rtype: str
-        :return: serialized date
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_date(attr)
-        t = "{:04}-{:02}-{:02}".format(attr.year, attr.month, attr.day)
-        return t
-
-    @staticmethod
-    def serialize_time(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Time object into ISO-8601 formatted string.
-
-        :param datetime.time attr: Object to be serialized.
-        :rtype: str
-        :return: serialized time
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_time(attr)
-        t = "{:02}:{:02}:{:02}".format(attr.hour, attr.minute, attr.second)
-        if attr.microsecond:
-            t += ".{:02}".format(attr.microsecond)
-        return t
-
-    @staticmethod
-    def serialize_duration(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize TimeDelta object into ISO-8601 formatted string.
-
-        :param TimeDelta attr: Object to be serialized.
-        :rtype: str
-        :return: serialized duration
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_duration(attr)
-        return isodate.duration_isoformat(attr)
-
-    @staticmethod
-    def serialize_rfc(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into RFC-1123 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises TypeError: if format invalid.
-        :return: serialized rfc
-        """
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-        except AttributeError as exc:
-            raise TypeError("RFC1123 object must be valid Datetime object.") from exc
-
-        return "{}, {:02} {} {:04} {:02}:{:02}:{:02} GMT".format(
-            Serializer.days[utc.tm_wday],
-            utc.tm_mday,
-            Serializer.months[utc.tm_mon],
-            utc.tm_year,
-            utc.tm_hour,
-            utc.tm_min,
-            utc.tm_sec,
-        )
-
-    @staticmethod
-    def serialize_iso(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into ISO-8601 formatted string.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: str
-        :raises SerializationError: if format invalid.
-        :return: serialized iso
-        """
-        if isinstance(attr, str):
-            attr = isodate.parse_datetime(attr)
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            utc = attr.utctimetuple()
-            if utc.tm_year > 9999 or utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-
-            microseconds = str(attr.microsecond).rjust(6, "0").rstrip("0").ljust(3, "0")
-            if microseconds:
-                microseconds = "." + microseconds
-            date = "{:04}-{:02}-{:02}T{:02}:{:02}:{:02}".format(
-                utc.tm_year, utc.tm_mon, utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec
-            )
-            return date + microseconds + "Z"
-        except (ValueError, OverflowError) as err:
-            msg = "Unable to serialize datetime object."
-            raise SerializationError(msg) from err
-        except AttributeError as err:
-            msg = "ISO-8601 object must be valid Datetime object."
-            raise TypeError(msg) from err
-
-    @staticmethod
-    def serialize_unix(attr, **kwargs):  # pylint: disable=unused-argument
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param Datetime attr: Object to be serialized.
-        :rtype: int
-        :raises SerializationError: if format invalid
-        :return: serialied unix
-        """
-        if isinstance(attr, int):
-            return attr
-        try:
-            if not attr.tzinfo:
-                _LOGGER.warning("Datetime with no tzinfo will be considered UTC.")
-            return int(calendar.timegm(attr.utctimetuple()))
-        except AttributeError as exc:
-            raise TypeError("Unix time object must be valid Datetime object.") from exc
-
-
-def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = working_data.get(working_key, data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    return working_data.get(key)
-
-
-def rest_key_case_insensitive_extractor(  # pylint: disable=unused-argument, inconsistent-return-statements
-    attr, attr_desc, data
-):
-    key = attr_desc["key"]
-    working_data = data
-
-    while "." in key:
-        dict_keys = _FLATTEN.split(key)
-        if len(dict_keys) == 1:
-            key = _decode_attribute_map_key(dict_keys[0])
-            break
-        working_key = _decode_attribute_map_key(dict_keys[0])
-        working_data = attribute_key_case_insensitive_extractor(working_key, None, working_data)
-        if working_data is None:
-            # If at any point while following flatten JSON path see None, it means
-            # that all properties under are None as well
-            return None
-        key = ".".join(dict_keys[1:])
-
-    if working_data:
-        return attribute_key_case_insensitive_extractor(key, None, working_data)
-
-
-def last_rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_extractor(dict_keys[-1], None, data)
-
-
-def last_rest_key_case_insensitive_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument
-    """Extract the attribute in "data" based on the last part of the JSON path key.
-
-    This is the case insensitive version of "last_rest_key_extractor"
-    :param str attr: The attribute to extract
-    :param dict attr_desc: The attribute description
-    :param dict data: The data to extract from
-    :rtype: object
-    :returns: The extracted attribute
-    """
-    key = attr_desc["key"]
-    dict_keys = _FLATTEN.split(key)
-    return attribute_key_case_insensitive_extractor(dict_keys[-1], None, data)
-
-
-def attribute_key_extractor(attr, _, data):
-    return data.get(attr)
-
-
-def attribute_key_case_insensitive_extractor(attr, _, data):
-    found_key = None
-    lower_attr = attr.lower()
-    for key in data:
-        if lower_attr == key.lower():
-            found_key = key
-            break
-
-    return data.get(found_key)
-
-
-def _extract_name_from_internal_type(internal_type):
-    """Given an internal type XML description, extract correct XML name with namespace.
-
-    :param dict internal_type: An model type
-    :rtype: tuple
-    :returns: A tuple XML name + namespace dict
-    """
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-    xml_name = internal_type_xml_map.get("name", internal_type.__name__)
-    xml_ns = internal_type_xml_map.get("ns", None)
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-    return xml_name
-
-
-def xml_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argument,too-many-return-statements
-    if isinstance(data, dict):
-        return None
-
-    # Test if this model is XML ready first
-    if not isinstance(data, ET.Element):
-        return None
-
-    xml_desc = attr_desc.get("xml", {})
-    xml_name = xml_desc.get("name", attr_desc["key"])
-
-    # Look for a children
-    is_iter_type = attr_desc["type"].startswith("[")
-    is_wrapped = xml_desc.get("wrapped", False)
-    internal_type = attr_desc.get("internalType", None)
-    internal_type_xml_map = getattr(internal_type, "_xml_map", {})
-
-    # Integrate namespace if necessary
-    xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
-    if xml_ns:
-        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
-
-    # If it's an attribute, that's simple
-    if xml_desc.get("attr", False):
-        return data.get(xml_name)
-
-    # If it's x-ms-text, that's simple too
-    if xml_desc.get("text", False):
-        return data.text
-
-    # Scenario where I take the local name:
-    # - Wrapped node
-    # - Internal type is an enum (considered basic types)
-    # - Internal type has no XML/Name node
-    if is_wrapped or (internal_type and (issubclass(internal_type, Enum) or "name" not in internal_type_xml_map)):
-        children = data.findall(xml_name)
-    # If internal type has a local name and it's not a list, I use that name
-    elif not is_iter_type and internal_type and "name" in internal_type_xml_map:
-        xml_name = _extract_name_from_internal_type(internal_type)
-        children = data.findall(xml_name)
-    # That's an array
-    else:
-        if internal_type:  # Complex type, ignore itemsName and use the complex type name
-            items_name = _extract_name_from_internal_type(internal_type)
-        else:
-            items_name = xml_desc.get("itemsName", xml_name)
-        children = data.findall(items_name)
-
-    if len(children) == 0:
-        if is_iter_type:
-            if is_wrapped:
-                return None  # is_wrapped no node, we want None
-            return []  # not wrapped, assume empty list
-        return None  # Assume it's not there, maybe an optional node.
-
-    # If is_iter_type and not wrapped, return all found children
-    if is_iter_type:
-        if not is_wrapped:
-            return children
-        # Iter and wrapped, should have found one node only (the wrap one)
-        if len(children) != 1:
-            raise DeserializationError(
-                "Tried to deserialize an array not wrapped, and found several nodes '{}'. Maybe you should declare this array as wrapped?".format(
-                    xml_name
-                )
-            )
-        return list(children[0])  # Might be empty list and that's ok.
-
-    # Here it's not a itertype, we should have found one element only or empty
-    if len(children) > 1:
-        raise DeserializationError("Find several XML '{}' where it was not expected".format(xml_name))
-    return children[0]
-
-
-class Deserializer:
-    """Response object model deserializer.
-
-    :param dict classes: Class type dictionary for deserializing complex types.
-    :ivar list key_extractors: Ordered list of extractors to be used by this deserializer.
-    """
-
-    basic_types = {str: "str", int: "int", bool: "bool", float: "float"}
-
-    valid_date = re.compile(r"\d{4}[-]\d{2}[-]\d{2}T\d{2}:\d{2}:\d{2}\.?\d*Z?[-+]?[\d{2}]?:?[\d{2}]?")
-
-    def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
-        self.deserialize_type = {
-            "iso-8601": Deserializer.deserialize_iso,
-            "rfc-1123": Deserializer.deserialize_rfc,
-            "unix-time": Deserializer.deserialize_unix,
-            "duration": Deserializer.deserialize_duration,
-            "date": Deserializer.deserialize_date,
-            "time": Deserializer.deserialize_time,
-            "decimal": Deserializer.deserialize_decimal,
-            "long": Deserializer.deserialize_long,
-            "bytearray": Deserializer.deserialize_bytearray,
-            "base64": Deserializer.deserialize_base64,
-            "object": self.deserialize_object,
-            "[]": self.deserialize_iter,
-            "{}": self.deserialize_dict,
-        }
-        self.deserialize_expected_types = {
-            "duration": (isodate.Duration, datetime.timedelta),
-            "iso-8601": (datetime.datetime),
-        }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
-        self.key_extractors = [rest_key_extractor, xml_key_extractor]
-        # Additional properties only works if the "rest_key_extractor" is used to
-        # extract the keys. Making it to work whatever the key extractor is too much
-        # complicated, with no real scenario for now.
-        # So adding a flag to disable additional properties detection. This flag should be
-        # used if your expect the deserialization to NOT come from a JSON REST syntax.
-        # Otherwise, result are unexpected
-        self.additional_properties_detection = True
-
-    def __call__(self, target_obj, response_data, content_type=None):
-        """Call the deserializer to process a REST response.
-
-        :param str target_obj: Target data type to deserialize to.
-        :param requests.Response response_data: REST response object.
-        :param str content_type: Swagger "produces" if available.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        data = self._unpack_content(response_data, content_type)
-        return self._deserialize(target_obj, data)
-
-    def _deserialize(self, target_obj, data):  # pylint: disable=inconsistent-return-statements
-        """Call the deserializer on a model.
-
-        Data needs to be already deserialized as JSON or XML ElementTree
-
-        :param str target_obj: Target data type to deserialize to.
-        :param object data: Object to deserialize.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        # This is already a model, go recursive just in case
-        if hasattr(data, "_attribute_map"):
-            constants = [name for name, config in getattr(data, "_validation", {}).items() if config.get("constant")]
-            try:
-                for attr, mapconfig in data._attribute_map.items():  # pylint: disable=protected-access
-                    if attr in constants:
-                        continue
-                    value = getattr(data, attr)
-                    if value is None:
-                        continue
-                    local_type = mapconfig["type"]
-                    internal_data_type = local_type.strip("[]{}")
-                    if internal_data_type not in self.dependencies or isinstance(internal_data_type, Enum):
-                        continue
-                    setattr(data, attr, self._deserialize(local_type, value))
-                return data
-            except AttributeError:
-                return
-
-        response, class_name = self._classify_target(target_obj, data)
-
-        if isinstance(response, str):
-            return self.deserialize_data(data, response)
-        if isinstance(response, type) and issubclass(response, Enum):
-            return self.deserialize_enum(data, response)
-
-        if data is None or data is CoreNull:
-            return data
-        try:
-            attributes = response._attribute_map  # type: ignore # pylint: disable=protected-access
-            d_attrs = {}
-            for attr, attr_desc in attributes.items():
-                # Check empty string. If it's not empty, someone has a real "additionalProperties"...
-                if attr == "additional_properties" and attr_desc["key"] == "":
-                    continue
-                raw_value = None
-                # Enhance attr_desc with some dynamic data
-                attr_desc = attr_desc.copy()  # Do a copy, do not change the real one
-                internal_data_type = attr_desc["type"].strip("[]{}")
-                if internal_data_type in self.dependencies:
-                    attr_desc["internalType"] = self.dependencies[internal_data_type]
-
-                for key_extractor in self.key_extractors:
-                    found_value = key_extractor(attr, attr_desc, data)
-                    if found_value is not None:
-                        if raw_value is not None and raw_value != found_value:
-                            msg = (
-                                "Ignoring extracted value '%s' from %s for key '%s'"
-                                " (duplicate extraction, follow extractors order)"
-                            )
-                            _LOGGER.warning(msg, found_value, key_extractor, attr)
-                            continue
-                        raw_value = found_value
-
-                value = self.deserialize_data(raw_value, attr_desc["type"])
-                d_attrs[attr] = value
-        except (AttributeError, TypeError, KeyError) as err:
-            msg = "Unable to deserialize to object: " + class_name  # type: ignore
-            raise DeserializationError(msg) from err
-        additional_properties = self._build_additional_properties(attributes, data)
-        return self._instantiate_model(response, d_attrs, additional_properties)
-
-    def _build_additional_properties(self, attribute_map, data):
-        if not self.additional_properties_detection:
-            return None
-        if "additional_properties" in attribute_map and attribute_map.get("additional_properties", {}).get("key") != "":
-            # Check empty string. If it's not empty, someone has a real "additionalProperties"
-            return None
-        if isinstance(data, ET.Element):
-            data = {el.tag: el.text for el in data}
-
-        known_keys = {
-            _decode_attribute_map_key(_FLATTEN.split(desc["key"])[0])
-            for desc in attribute_map.values()
-            if desc["key"] != ""
-        }
-        present_keys = set(data.keys())
-        missing_keys = present_keys - known_keys
-        return {key: data[key] for key in missing_keys}
-
-    def _classify_target(self, target, data):
-        """Check to see whether the deserialization target object can
-        be classified into a subclass.
-        Once classification has been determined, initialize object.
-
-        :param str target: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :return: The classified target object and its class name.
-        :rtype: tuple
-        """
-        if target is None:
-            return None, None
-
-        if isinstance(target, str):
-            try:
-                target = self.dependencies[target]
-            except KeyError:
-                return target, target
-
-        try:
-            target = target._classify(data, self.dependencies)  # type: ignore # pylint: disable=protected-access
-        except AttributeError:
-            pass  # Target is not a Model, no classify
-        return target, target.__class__.__name__  # type: ignore
-
-    def failsafe_deserialize(self, target_obj, data, content_type=None):
-        """Ignores any errors encountered in deserialization,
-        and falls back to not deserializing the object. Recommended
-        for use in error deserialization, as we want to return the
-        HttpResponseError to users, and not have them deal with
-        a deserialization error.
-
-        :param str target_obj: The target object type to deserialize to.
-        :param str/dict data: The response data to deserialize.
-        :param str content_type: Swagger "produces" if available.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        try:
-            return self(target_obj, data, content_type=content_type)
-        except:  # pylint: disable=bare-except
-            _LOGGER.debug(
-                "Ran into a deserialization error. Ignoring since this is failsafe deserialization", exc_info=True
-            )
-            return None
-
-    @staticmethod
-    def _unpack_content(raw_data, content_type=None):
-        """Extract the correct structure for deserialization.
-
-        If raw_data is a PipelineResponse, try to extract the result of RawDeserializer.
-        if we can't, raise. Your Pipeline should have a RawDeserializer.
-
-        If not a pipeline response and raw_data is bytes or string, use content-type
-        to decode it. If no content-type, try JSON.
-
-        If raw_data is something else, bypass all logic and return it directly.
-
-        :param obj raw_data: Data to be processed.
-        :param str content_type: How to parse if raw_data is a string/bytes.
-        :raises JSONDecodeError: If JSON is requested and parsing is impossible.
-        :raises UnicodeDecodeError: If bytes is not UTF8
-        :rtype: object
-        :return: Unpacked content.
-        """
-        # Assume this is enough to detect a Pipeline Response without importing it
-        context = getattr(raw_data, "context", {})
-        if context:
-            if RawDeserializer.CONTEXT_NAME in context:
-                return context[RawDeserializer.CONTEXT_NAME]
-            raise ValueError("This pipeline didn't have the RawDeserializer policy; can't deserialize")
-
-        # Assume this is enough to recognize universal_http.ClientResponse without importing it
-        if hasattr(raw_data, "body"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text(), raw_data.headers)
-
-        # Assume this enough to recognize requests.Response without importing it.
-        if hasattr(raw_data, "_content_consumed"):
-            return RawDeserializer.deserialize_from_http_generics(raw_data.text, raw_data.headers)
-
-        if isinstance(raw_data, (str, bytes)) or hasattr(raw_data, "read"):
-            return RawDeserializer.deserialize_from_text(raw_data, content_type)  # type: ignore
-        return raw_data
-
-    def _instantiate_model(self, response, attrs, additional_properties=None):
-        """Instantiate a response model passing in deserialized args.
-
-        :param Response response: The response model class.
-        :param dict attrs: The deserialized response attributes.
-        :param dict additional_properties: Additional properties to be set.
-        :rtype: Response
-        :return: The instantiated response model.
-        """
-        if callable(response):
-            subtype = getattr(response, "_subtype_map", {})
-            try:
-                readonly = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("readonly")
-                ]
-                const = [
-                    k
-                    for k, v in response._validation.items()  # pylint: disable=protected-access  # type: ignore
-                    if v.get("constant")
-                ]
-                kwargs = {k: v for k, v in attrs.items() if k not in subtype and k not in readonly + const}
-                response_obj = response(**kwargs)
-                for attr in readonly:
-                    setattr(response_obj, attr, attrs.get(attr))
-                if additional_properties:
-                    response_obj.additional_properties = additional_properties  # type: ignore
-                return response_obj
-            except TypeError as err:
-                msg = "Unable to deserialize {} into model {}. ".format(kwargs, response)  # type: ignore
-                raise DeserializationError(msg + str(err)) from err
-        else:
-            try:
-                for attr, value in attrs.items():
-                    setattr(response, attr, value)
-                return response
-            except Exception as exp:
-                msg = "Unable to populate response model. "
-                msg += "Type: {}, Error: {}".format(type(response), exp)
-                raise DeserializationError(msg) from exp
-
-    def deserialize_data(self, data, data_type):  # pylint: disable=too-many-return-statements
-        """Process data for deserialization according to data type.
-
-        :param str data: The response string to be deserialized.
-        :param str data_type: The type to deserialize to.
-        :raises DeserializationError: if deserialization fails.
-        :return: Deserialized object.
-        :rtype: object
-        """
-        if data is None:
-            return data
-
-        try:
-            if not data_type:
-                return data
-            if data_type in self.basic_types.values():
-                return self.deserialize_basic(data, data_type)
-            if data_type in self.deserialize_type:
-                if isinstance(data, self.deserialize_expected_types.get(data_type, tuple())):
-                    return data
-
-                is_a_text_parsing_type = lambda x: x not in [  # pylint: disable=unnecessary-lambda-assignment
-                    "object",
-                    "[]",
-                    r"{}",
-                ]
-                if isinstance(data, ET.Element) and is_a_text_parsing_type(data_type) and not data.text:
-                    return None
-                data_val = self.deserialize_type[data_type](data)
-                return data_val
-
-            iter_type = data_type[0] + data_type[-1]
-            if iter_type in self.deserialize_type:
-                return self.deserialize_type[iter_type](data, data_type[1:-1])
-
-            obj_type = self.dependencies[data_type]
-            if issubclass(obj_type, Enum):
-                if isinstance(data, ET.Element):
-                    data = data.text
-                return self.deserialize_enum(data, obj_type)
-
-        except (ValueError, TypeError, AttributeError) as err:
-            msg = "Unable to deserialize response data."
-            msg += " Data: {}, {}".format(data, data_type)
-            raise DeserializationError(msg) from err
-        return self._deserialize(obj_type, data)
-
-    def deserialize_iter(self, attr, iter_type):
-        """Deserialize an iterable.
-
-        :param list attr: Iterable to be deserialized.
-        :param str iter_type: The type of object in the iterable.
-        :return: Deserialized iterable.
-        :rtype: list
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):  # If I receive an element here, get the children
-            attr = list(attr)
-        if not isinstance(attr, (list, set)):
-            raise DeserializationError("Cannot deserialize as [{}] an object of type {}".format(iter_type, type(attr)))
-        return [self.deserialize_data(a, iter_type) for a in attr]
-
-    def deserialize_dict(self, attr, dict_type):
-        """Deserialize a dictionary.
-
-        :param dict/list attr: Dictionary to be deserialized. Also accepts
-         a list of key, value pairs.
-        :param str dict_type: The object type of the items in the dictionary.
-        :return: Deserialized dictionary.
-        :rtype: dict
-        """
-        if isinstance(attr, list):
-            return {x["key"]: self.deserialize_data(x["value"], dict_type) for x in attr}
-
-        if isinstance(attr, ET.Element):
-            # Transform <Key>value</Key> into {"Key": "value"}
-            attr = {el.tag: el.text for el in attr}
-        return {k: self.deserialize_data(v, dict_type) for k, v in attr.items()}
-
-    def deserialize_object(self, attr, **kwargs):  # pylint: disable=too-many-return-statements
-        """Deserialize a generic object.
-        This will be handled as a dictionary.
-
-        :param dict attr: Dictionary to be deserialized.
-        :return: Deserialized object.
-        :rtype: dict
-        :raises TypeError: if non-builtin datatype encountered.
-        """
-        if attr is None:
-            return None
-        if isinstance(attr, ET.Element):
-            # Do no recurse on XML, just return the tree as-is
-            return attr
-        if isinstance(attr, str):
-            return self.deserialize_basic(attr, "str")
-        obj_type = type(attr)
-        if obj_type in self.basic_types:
-            return self.deserialize_basic(attr, self.basic_types[obj_type])
-        if obj_type is _long_type:
-            return self.deserialize_long(attr)
-
-        if obj_type == dict:
-            deserialized = {}
-            for key, value in attr.items():
-                try:
-                    deserialized[key] = self.deserialize_object(value, **kwargs)
-                except ValueError:
-                    deserialized[key] = None
-            return deserialized
-
-        if obj_type == list:
-            deserialized = []
-            for obj in attr:
-                try:
-                    deserialized.append(self.deserialize_object(obj, **kwargs))
-                except ValueError:
-                    pass
-            return deserialized
-
-        error = "Cannot deserialize generic object with type: "
-        raise TypeError(error + str(obj_type))
-
-    def deserialize_basic(self, attr, data_type):  # pylint: disable=too-many-return-statements
-        """Deserialize basic builtin data type from string.
-        Will attempt to convert to str, int, float and bool.
-        This function will also accept '1', '0', 'true' and 'false' as
-        valid bool values.
-
-        :param str attr: response string to be deserialized.
-        :param str data_type: deserialization data type.
-        :return: Deserialized basic type.
-        :rtype: str, int, float or bool
-        :raises TypeError: if string format is not valid.
-        """
-        # If we're here, data is supposed to be a basic type.
-        # If it's still an XML node, take the text
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-            if not attr:
-                if data_type == "str":
-                    # None or '', node <a/> is empty string.
-                    return ""
-                # None or '', node <a/> with a strong type is None.
-                # Don't try to model "empty bool" or "empty int"
-                return None
-
-        if data_type == "bool":
-            if attr in [True, False, 1, 0]:
-                return bool(attr)
-            if isinstance(attr, str):
-                if attr.lower() in ["true", "1"]:
-                    return True
-                if attr.lower() in ["false", "0"]:
-                    return False
-            raise TypeError("Invalid boolean value: {}".format(attr))
-
-        if data_type == "str":
-            return self.deserialize_unicode(attr)
-        return eval(data_type)(attr)  # nosec # pylint: disable=eval-used
-
-    @staticmethod
-    def deserialize_unicode(data):
-        """Preserve unicode objects in Python 2, otherwise return data
-        as a string.
-
-        :param str data: response string to be deserialized.
-        :return: Deserialized string.
-        :rtype: str or unicode
-        """
-        # We might be here because we have an enum modeled as string,
-        # and we try to deserialize a partial dict with enum inside
-        if isinstance(data, Enum):
-            return data
-
-        # Consider this is real string
-        try:
-            if isinstance(data, unicode):  # type: ignore
-                return data
-        except NameError:
-            return str(data)
-        return str(data)
-
-    @staticmethod
-    def deserialize_enum(data, enum_obj):
-        """Deserialize string into enum object.
-
-        If the string is not a valid enum value it will be returned as-is
-        and a warning will be logged.
-
-        :param str data: Response string to be deserialized. If this value is
-         None or invalid it will be returned as-is.
-        :param Enum enum_obj: Enum object to deserialize to.
-        :return: Deserialized enum object.
-        :rtype: Enum
-        """
-        if isinstance(data, enum_obj) or data is None:
-            return data
-        if isinstance(data, Enum):
-            data = data.value
-        if isinstance(data, int):
-            # Workaround. We might consider remove it in the future.
-            try:
-                return list(enum_obj.__members__.values())[data]
-            except IndexError as exc:
-                error = "{!r} is not a valid index for enum {!r}"
-                raise DeserializationError(error.format(data, enum_obj)) from exc
-        try:
-            return enum_obj(str(data))
-        except ValueError:
-            for enum_value in enum_obj:
-                if enum_value.value.lower() == str(data).lower():
-                    return enum_value
-            # We don't fail anymore for unknown value, we deserialize as a string
-            _LOGGER.warning("Deserializer is not able to find %s as valid enum in %s", data, enum_obj)
-            return Deserializer.deserialize_unicode(data)
-
-    @staticmethod
-    def deserialize_bytearray(attr):
-        """Deserialize string into bytearray.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized bytearray
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return bytearray(b64decode(attr))  # type: ignore
-
-    @staticmethod
-    def deserialize_base64(attr):
-        """Deserialize base64 encoded string into string.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized base64 string
-        :rtype: bytearray
-        :raises TypeError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        padding = "=" * (3 - (len(attr) + 3) % 4)  # type: ignore
-        attr = attr + padding  # type: ignore
-        encoded = attr.replace("-", "+").replace("_", "/")
-        return b64decode(encoded)
-
-    @staticmethod
-    def deserialize_decimal(attr):
-        """Deserialize string into Decimal object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized decimal
-        :raises DeserializationError: if string format invalid.
-        :rtype: decimal
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            return decimal.Decimal(str(attr))  # type: ignore
-        except decimal.DecimalException as err:
-            msg = "Invalid decimal {}".format(attr)
-            raise DeserializationError(msg) from err
-
-    @staticmethod
-    def deserialize_long(attr):
-        """Deserialize string into long (Py2) or int (Py3).
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized int
-        :rtype: long or int
-        :raises ValueError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        return _long_type(attr)  # type: ignore
-
-    @staticmethod
-    def deserialize_duration(attr):
-        """Deserialize ISO-8601 formatted string into TimeDelta object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized duration
-        :rtype: TimeDelta
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            duration = isodate.parse_duration(attr)
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize duration object."
-            raise DeserializationError(msg) from err
-        return duration
-
-    @staticmethod
-    def deserialize_date(attr):
-        """Deserialize ISO-8601 formatted string into Date object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized date
-        :rtype: Date
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        # This must NOT use defaultmonth/defaultday. Using None ensure this raises an exception.
-        return isodate.parse_date(attr, defaultmonth=0, defaultday=0)
-
-    @staticmethod
-    def deserialize_time(attr):
-        """Deserialize ISO-8601 formatted string into time object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized time
-        :rtype: datetime.time
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        if re.search(r"[^\W\d_]", attr, re.I + re.U):  # type: ignore
-            raise DeserializationError("Date must have only digits and -. Received: %s" % attr)
-        return isodate.parse_time(attr)
-
-    @staticmethod
-    def deserialize_rfc(attr):
-        """Deserialize RFC-1123 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized RFC datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            parsed_date = email.utils.parsedate_tz(attr)  # type: ignore
-            date_obj = datetime.datetime(
-                *parsed_date[:6], tzinfo=datetime.timezone(datetime.timedelta(minutes=(parsed_date[9] or 0) / 60))
-            )
-            if not date_obj.tzinfo:
-                date_obj = date_obj.astimezone(tz=TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to rfc datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_iso(attr):
-        """Deserialize ISO-8601 formatted string into Datetime object.
-
-        :param str attr: response string to be deserialized.
-        :return: Deserialized ISO datetime
-        :rtype: Datetime
-        :raises DeserializationError: if string format invalid.
-        """
-        if isinstance(attr, ET.Element):
-            attr = attr.text
-        try:
-            attr = attr.upper()  # type: ignore
-            match = Deserializer.valid_date.match(attr)
-            if not match:
-                raise ValueError("Invalid datetime string: " + attr)
-
-            check_decimal = attr.split(".")
-            if len(check_decimal) > 1:
-                decimal_str = ""
-                for digit in check_decimal[1]:
-                    if digit.isdigit():
-                        decimal_str += digit
-                    else:
-                        break
-                if len(decimal_str) > 6:
-                    attr = attr.replace(decimal_str, decimal_str[0:6])
-
-            date_obj = isodate.parse_datetime(attr)
-            test_utc = date_obj.utctimetuple()
-            if test_utc.tm_year > 9999 or test_utc.tm_year < 1:
-                raise OverflowError("Hit max or min date")
-        except (ValueError, OverflowError, AttributeError) as err:
-            msg = "Cannot deserialize datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
-
-    @staticmethod
-    def deserialize_unix(attr):
-        """Serialize Datetime object into IntTime format.
-        This is represented as seconds.
-
-        :param int attr: Object to be serialized.
-        :return: Deserialized datetime
-        :rtype: Datetime
-        :raises DeserializationError: if format invalid
-        """
-        if isinstance(attr, ET.Element):
-            attr = int(attr.text)  # type: ignore
-        try:
-            attr = int(attr)
-            date_obj = datetime.datetime.fromtimestamp(attr, TZ_UTC)
-        except ValueError as err:
-            msg = "Cannot deserialize to unix datetime object."
-            raise DeserializationError(msg) from err
-        return date_obj
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/utils.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/utils.py
deleted file mode 100644
index 39b612f39a9..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/_utils/utils.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from abc import ABC
-from typing import Generic, TYPE_CHECKING, TypeVar
-
-if TYPE_CHECKING:
-    from .serialization import Deserializer, Serializer
-
-
-TClient = TypeVar("TClient")
-TConfig = TypeVar("TConfig")
-
-
-class ClientMixinABC(ABC, Generic[TClient, TConfig]):
-    """DO NOT use this class. It is for internal typing use only."""
-
-    _client: TClient
-    _config: TConfig
-    _serialize: "Serializer"
-    _deserialize: "Deserializer"
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/__init__.py
deleted file mode 100644
index 30c0d2f93d3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client import MultiapiServiceClient  # type: ignore
-
-try:
-    from ._patch import __all__ as _patch_all
-    from ._patch import *
-except ImportError:
-    _patch_all = []
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClient",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_configuration.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_configuration.py
deleted file mode 100644
index 8af8da90e17..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_configuration.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, Optional, TYPE_CHECKING
-
-from azure.core.pipeline import policies
-from azure.mgmt.core.policies import ARMHttpLoggingPolicy, AsyncARMChallengeAuthenticationPolicy
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-VERSION = "unknown"
-
-
-class MultiapiServiceClientConfiguration:  # pylint: disable=too-many-instance-attributes
-    """Configuration for MultiapiServiceClient.
-
-    Note that all parameters used to create this instance are saved as instance
-    attributes.
-
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :type cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self, credential: "AsyncTokenCredential", cloud_setting: Optional["AzureClouds"] = None, **kwargs: Any
-    ) -> None:
-        api_version: str = kwargs.pop("api_version", "3.0.0")
-
-        if credential is None:
-            raise ValueError("Parameter 'credential' must not be None.")
-
-        self.credential = credential
-        self.cloud_setting = cloud_setting
-        self.api_version = api_version
-        self.credential_scopes = kwargs.pop("credential_scopes", ["https://management.azure.com/.default"])
-        kwargs.setdefault("sdk_moniker", "multiapiwithsubmodule/{}".format(VERSION))
-        self.polling_interval = kwargs.get("polling_interval", 30)
-        self._configure(**kwargs)
-
-    def _configure(self, **kwargs: Any) -> None:
-        self.user_agent_policy = kwargs.get("user_agent_policy") or policies.UserAgentPolicy(**kwargs)
-        self.headers_policy = kwargs.get("headers_policy") or policies.HeadersPolicy(**kwargs)
-        self.proxy_policy = kwargs.get("proxy_policy") or policies.ProxyPolicy(**kwargs)
-        self.logging_policy = kwargs.get("logging_policy") or policies.NetworkTraceLoggingPolicy(**kwargs)
-        self.http_logging_policy = kwargs.get("http_logging_policy") or ARMHttpLoggingPolicy(**kwargs)
-        self.custom_hook_policy = kwargs.get("custom_hook_policy") or policies.CustomHookPolicy(**kwargs)
-        self.redirect_policy = kwargs.get("redirect_policy") or policies.AsyncRedirectPolicy(**kwargs)
-        self.retry_policy = kwargs.get("retry_policy") or policies.AsyncRetryPolicy(**kwargs)
-        self.authentication_policy = kwargs.get("authentication_policy")
-        if self.credential and not self.authentication_policy:
-            self.authentication_policy = AsyncARMChallengeAuthenticationPolicy(
-                self.credential, *self.credential_scopes, **kwargs
-            )
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_multiapi_service_client.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_multiapi_service_client.py
deleted file mode 100644
index 9f2c607a316..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_multiapi_service_client.py
+++ /dev/null
@@ -1,133 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from copy import deepcopy
-from typing import Any, Awaitable, Optional, TYPE_CHECKING, cast
-from typing_extensions import Self
-
-from azure.core.pipeline import policies
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.settings import settings
-from azure.mgmt.core import AsyncARMPipelineClient
-from azure.mgmt.core.policies import AsyncARMAutoResourceProviderRegistrationPolicy
-from azure.mgmt.core.tools import get_arm_endpoints
-
-from .. import models as _models
-from .._utils.serialization import Deserializer, Serializer
-from ._configuration import MultiapiServiceClientConfiguration
-from .operations import MultiapiServiceClientOperationsMixin, OperationGroupOneOperations, OperationGroupTwoOperations
-
-if TYPE_CHECKING:
-    from azure.core import AzureClouds
-    from azure.core.credentials_async import AsyncTokenCredential
-
-
-class MultiapiServiceClient(MultiapiServiceClientOperationsMixin):
-    """Service client for multiapi client testing.
-
-    :ivar operation_group_one: OperationGroupOneOperations operations
-    :vartype operation_group_one:
-     multiapiwithsubmodule.submodule.v3.aio.operations.OperationGroupOneOperations
-    :ivar operation_group_two: OperationGroupTwoOperations operations
-    :vartype operation_group_two:
-     multiapiwithsubmodule.submodule.v3.aio.operations.OperationGroupTwoOperations
-    :param credential: Credential needed for the client to connect to Azure. Required.
-    :type credential: ~azure.core.credentials_async.AsyncTokenCredential
-    :param base_url: Service URL. Default value is None.
-    :type base_url: str
-    :keyword cloud_setting: The cloud setting for which to get the ARM endpoint. Default value is
-     None.
-    :paramtype cloud_setting: ~azure.core.AzureClouds
-    :keyword api_version: Api Version. Default value is "3.0.0". Note that overriding this default
-     value may result in unsupported behavior.
-    :paramtype api_version: str
-    """
-
-    def __init__(
-        self,
-        credential: "AsyncTokenCredential",
-        base_url: Optional[str] = None,
-        *,
-        cloud_setting: Optional["AzureClouds"] = None,
-        **kwargs: Any
-    ) -> None:
-        _cloud = cloud_setting or settings.current.azure_cloud  # type: ignore
-        _endpoints = get_arm_endpoints(_cloud)
-        if not base_url:
-            base_url = _endpoints["resource_manager"]
-        credential_scopes = kwargs.pop("credential_scopes", _endpoints["credential_scopes"])
-        self._config = MultiapiServiceClientConfiguration(
-            credential=credential, cloud_setting=cloud_setting, credential_scopes=credential_scopes, **kwargs
-        )
-
-        _policies = kwargs.pop("policies", None)
-        if _policies is None:
-            _policies = [
-                policies.RequestIdPolicy(**kwargs),
-                self._config.headers_policy,
-                self._config.user_agent_policy,
-                self._config.proxy_policy,
-                policies.ContentDecodePolicy(**kwargs),
-                AsyncARMAutoResourceProviderRegistrationPolicy(),
-                self._config.redirect_policy,
-                self._config.retry_policy,
-                self._config.authentication_policy,
-                self._config.custom_hook_policy,
-                self._config.logging_policy,
-                policies.DistributedTracingPolicy(**kwargs),
-                policies.SensitiveHeaderCleanupPolicy(**kwargs) if self._config.redirect_policy else None,
-                self._config.http_logging_policy,
-            ]
-        self._client: AsyncARMPipelineClient = AsyncARMPipelineClient(
-            base_url=cast(str, base_url), policies=_policies, **kwargs
-        )
-
-        client_models = {k: v for k, v in _models.__dict__.items() if isinstance(v, type)}
-        self._serialize = Serializer(client_models)
-        self._deserialize = Deserializer(client_models)
-        self._serialize.client_side_validation = False
-        self.operation_group_one = OperationGroupOneOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-        self.operation_group_two = OperationGroupTwoOperations(
-            self._client, self._config, self._serialize, self._deserialize, "3.0.0"
-        )
-
-    def _send_request(
-        self, request: HttpRequest, *, stream: bool = False, **kwargs: Any
-    ) -> Awaitable[AsyncHttpResponse]:
-        """Runs the network request through the client's chained policies.
-
-        >>> from azure.core.rest import HttpRequest
-        >>> request = HttpRequest("GET", "https://www.example.org/")
-        <HttpRequest [GET], url: 'https://www.example.org/'>
-        >>> response = await client._send_request(request)
-        <AsyncHttpResponse: 200 OK>
-
-        For more information on this code flow, see https://aka.ms/azsdk/dpcodegen/python/send_request
-
-        :param request: The network request you want to make. Required.
-        :type request: ~azure.core.rest.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
-        :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.rest.AsyncHttpResponse
-        """
-
-        request_copy = deepcopy(request)
-        request_copy.url = self._client.format_url(request_copy.url)
-        return self._client.send_request(request_copy, stream=stream, **kwargs)  # type: ignore
-
-    async def close(self) -> None:
-        await self._client.close()
-
-    async def __aenter__(self) -> Self:
-        await self._client.__aenter__()
-        return self
-
-    async def __aexit__(self, *exc_details: Any) -> None:
-        await self._client.__aexit__(*exc_details)
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index 4ba0d61e8bb..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,182 +0,0 @@
-# pylint: disable=line-too-long,useless-suppression
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.utils import ClientMixinABC
-from ...operations._multiapi_service_client_operations import (
-    build_test_different_calls_request,
-    build_test_paging_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[AsyncPipelineClient[HttpRequest, AsyncHttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @distributed_trace_async
-    async def test_different_calls(
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # type: ignore # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_one_operations.py
deleted file mode 100644
index c4b2ad250aa..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,237 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import AsyncPipelineClient
-from azure.core.async_paging import AsyncItemPaged, AsyncList
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_one_operations import (
-    build_test_operation_group_paging_request,
-    build_test_two_request,
-)
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> AsyncItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype:
-         ~azure.core.async_paging.AsyncItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        async def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, AsyncList(list_of_elem)
-
-        async def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return AsyncItemPaged(get_next, extract_data)
-
-    @overload
-    async def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_two_operations.py
deleted file mode 100644
index c0c69b9fb44..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,194 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import AsyncPipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import AsyncHttpResponse, HttpRequest
-from azure.core.tracing.decorator_async import distributed_trace_async
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from ... import models as _models
-from ..._utils.serialization import Deserializer, Serializer
-from ...operations._operation_group_two_operations import build_test_five_request, build_test_four_request
-from .._configuration import MultiapiServiceClientConfiguration
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v3.aio.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: AsyncPipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    async def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapiwithsubmodule.submodule.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    async def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace_async
-    async def test_four(self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapiwithsubmodule.submodule.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace_async
-    async def test_five(self, **kwargs: Any) -> None:
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = await self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/aio/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/__init__.py
deleted file mode 100644
index 63672cad01d..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-
-from ._models_py3 import (  # type: ignore
-    Error,
-    ModelThree,
-    PagingResult,
-    SourcePath,
-)
-
-from ._multiapi_service_client_enums import (  # type: ignore
-    ContentType,
-)
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "Error",
-    "ModelThree",
-    "PagingResult",
-    "SourcePath",
-    "ContentType",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_models_py3.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_models_py3.py
deleted file mode 100644
index 526b8aa9272..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_models_py3.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from typing import Any, List, Optional, TYPE_CHECKING
-
-from .._utils import serialization as _serialization
-
-if TYPE_CHECKING:
-    from .. import models as _models
-
-
-class Error(_serialization.Model):
-    """Error.
-
-    :ivar status:
-    :vartype status: int
-    :ivar message:
-    :vartype message: str
-    """
-
-    _attribute_map = {
-        "status": {"key": "status", "type": "int"},
-        "message": {"key": "message", "type": "str"},
-    }
-
-    def __init__(self, *, status: Optional[int] = None, message: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword status:
-        :paramtype status: int
-        :keyword message:
-        :paramtype message: str
-        """
-        super().__init__(**kwargs)
-        self.status = status
-        self.message = message
-
-
-class ModelThree(_serialization.Model):
-    """Only exists in api version 3.0.0.
-
-    :ivar optional_property:
-    :vartype optional_property: str
-    """
-
-    _attribute_map = {
-        "optional_property": {"key": "optionalProperty", "type": "str"},
-    }
-
-    def __init__(self, *, optional_property: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword optional_property:
-        :paramtype optional_property: str
-        """
-        super().__init__(**kwargs)
-        self.optional_property = optional_property
-
-
-class PagingResult(_serialization.Model):
-    """PagingResult.
-
-    :ivar values:
-    :vartype values: list[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-    :ivar next_link:
-    :vartype next_link: str
-    """
-
-    _attribute_map = {
-        "values": {"key": "values", "type": "[ModelThree]"},
-        "next_link": {"key": "nextLink", "type": "str"},
-    }
-
-    def __init__(
-        self, *, values: Optional[List["_models.ModelThree"]] = None, next_link: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """
-        :keyword values:
-        :paramtype values: list[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :keyword next_link:
-        :paramtype next_link: str
-        """
-        super().__init__(**kwargs)
-        self.values = values
-        self.next_link = next_link
-
-
-class SourcePath(_serialization.Model):
-    """Uri or local path to source data.
-
-    :ivar source: File source path.
-    :vartype source: str
-    """
-
-    _validation = {
-        "source": {"max_length": 2048},
-    }
-
-    _attribute_map = {
-        "source": {"key": "source", "type": "str"},
-    }
-
-    def __init__(self, *, source: Optional[str] = None, **kwargs: Any) -> None:
-        """
-        :keyword source: File source path.
-        :paramtype source: str
-        """
-        super().__init__(**kwargs)
-        self.source = source
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_multiapi_service_client_enums.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_multiapi_service_client_enums.py
deleted file mode 100644
index 7179ffb9c14..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_multiapi_service_client_enums.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-
-from enum import Enum
-from azure.core import CaseInsensitiveEnumMeta
-
-
-class ContentType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
-    """Content type for upload."""
-
-    APPLICATION_PDF = "application/pdf"
-    """Content Type 'application/pdf'"""
-    IMAGE_JPEG = "image/jpeg"
-    """Content Type 'image/jpeg'"""
-    IMAGE_PNG = "image/png"
-    """Content Type 'image/png'"""
-    IMAGE_TIFF = "image/tiff"
-    """Content Type 'image/tiff'"""
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_patch.py
deleted file mode 100644
index f7dd3251033..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/models/_patch.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/__init__.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/__init__.py
deleted file mode 100644
index 63452e61cf6..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/__init__.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-# pylint: disable=wrong-import-position
-
-from typing import TYPE_CHECKING
-
-if TYPE_CHECKING:
-    from ._patch import *  # pylint: disable=unused-wildcard-import
-
-from ._multiapi_service_client_operations import MultiapiServiceClientOperationsMixin  # type: ignore
-from ._operation_group_one_operations import OperationGroupOneOperations  # type: ignore
-from ._operation_group_two_operations import OperationGroupTwoOperations  # type: ignore
-
-from ._patch import __all__ as _patch_all
-from ._patch import *
-from ._patch import patch_sdk as _patch_sdk
-
-__all__ = [
-    "MultiapiServiceClientOperationsMixin",
-    "OperationGroupOneOperations",
-    "OperationGroupTwoOperations",
-]
-__all__.extend([p for p in _patch_all if p not in __all__])  # pyright: ignore
-_patch_sdk()
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_multiapi_service_client_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_multiapi_service_client_operations.py
deleted file mode 100644
index f1947c0c778..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_multiapi_service_client_operations.py
+++ /dev/null
@@ -1,223 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from typing import Any, Callable, Dict, Optional, TypeVar
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Serializer
-from .._utils.utils import ClientMixinABC
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_paging_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_different_calls_request(
-    *,
-    greeting_in_english: str,
-    greeting_in_chinese: Optional[str] = None,
-    greeting_in_french: Optional[str] = None,
-    **kwargs: Any
-) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/testDifferentCalls")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["greetingInEnglish"] = _SERIALIZER.header("greeting_in_english", greeting_in_english, "str")
-    if greeting_in_chinese is not None:
-        _headers["greetingInChinese"] = _SERIALIZER.header("greeting_in_chinese", greeting_in_chinese, "str")
-    if greeting_in_french is not None:
-        _headers["greetingInFrench"] = _SERIALIZER.header("greeting_in_french", greeting_in_french, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class MultiapiServiceClientOperationsMixin(
-    ClientMixinABC[PipelineClient[HttpRequest, HttpResponse], MultiapiServiceClientConfiguration]
-):
-    def _api_version(self, op_name: str) -> str:  # pylint: disable=unused-argument
-        try:
-            return self._config.api_version
-        except:  # pylint: disable=bare-except
-            return ""
-
-    @distributed_trace
-    def test_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._config.api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @distributed_trace
-    def test_different_calls(  # pylint: disable=inconsistent-return-statements
-        self,
-        greeting_in_english: str,
-        greeting_in_chinese: Optional[str] = None,
-        greeting_in_french: Optional[str] = None,
-        **kwargs: Any
-    ) -> None:
-        """Has added parameters across the API versions.
-
-        :param greeting_in_english: pass in 'hello' to pass test. Required.
-        :type greeting_in_english: str
-        :param greeting_in_chinese: pass in 'nihao' to pass test. Default value is None.
-        :type greeting_in_chinese: str
-        :param greeting_in_french: pass in 'bonjour' to pass test. Default value is None.
-        :type greeting_in_french: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop(
-            "api_version", _params.pop("api-version", self._api_version("test_different_calls") or "3.0.0")
-        )
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_different_calls_request(
-            greeting_in_english=greeting_in_english,
-            greeting_in_chinese=greeting_in_chinese,
-            greeting_in_french=greeting_in_french,
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_one_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_one_operations.py
deleted file mode 100644
index a6dfd8e8062..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_one_operations.py
+++ /dev/null
@@ -1,270 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-import urllib.parse
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.paging import ItemPaged
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_operation_group_paging_request(**kwargs: Any) -> HttpRequest:  # pylint: disable=name-too-long
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/paging/1")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, headers=_headers, **kwargs)
-
-
-def build_test_two_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/one/testTwoEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="GET", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupOneOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_one` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @distributed_trace
-    def test_operation_group_paging(self, **kwargs: Any) -> ItemPaged["_models.ModelThree"]:
-        """Returns ModelThree with optionalProperty 'paged'.
-
-        :return: An iterator like instance of either ModelThree or the result of cls(response)
-        :rtype: ~azure.core.paging.ItemPaged[~multiapiwithsubmodule.submodule.v3.models.ModelThree]
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = kwargs.pop("params", {}) or {}
-
-        cls: ClsType[_models.PagingResult] = kwargs.pop("cls", None)
-
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        def prepare_request(next_link=None):
-            if not next_link:
-
-                _request = build_test_operation_group_paging_request(
-                    headers=_headers,
-                    params=_params,
-                )
-                _request.url = self._client.format_url(_request.url)
-
-            else:
-                # make call to next link with the client's api-version
-                _parsed_next_link = urllib.parse.urlparse(next_link)
-                _next_request_params = case_insensitive_dict(
-                    {
-                        key: [urllib.parse.quote(v) for v in value]
-                        for key, value in urllib.parse.parse_qs(_parsed_next_link.query).items()
-                    }
-                )
-                _next_request_params["api-version"] = self._api_version
-                _request = HttpRequest(
-                    "GET", urllib.parse.urljoin(next_link, _parsed_next_link.path), params=_next_request_params
-                )
-                _request.url = self._client.format_url(_request.url)
-                _request.method = "GET"
-            return _request
-
-        def extract_data(pipeline_response):
-            deserialized = self._deserialize("PagingResult", pipeline_response)
-            list_of_elem = deserialized.values
-            if cls:
-                list_of_elem = cls(list_of_elem)  # type: ignore
-            return deserialized.next_link or None, iter(list_of_elem)
-
-        def get_next(next_link=None):
-            _request = prepare_request(next_link)
-
-            _stream = False
-            pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-                _request, stream=_stream, **kwargs
-            )
-            response = pipeline_response.http_response
-
-            if response.status_code not in [200]:
-                map_error(status_code=response.status_code, response=response, error_map=error_map)
-                raise HttpResponseError(response=response, error_format=ARMErrorFormat)
-
-            return pipeline_response
-
-        return ItemPaged(get_next, extract_data)
-
-    @overload
-    def test_two(
-        self,
-        parameter_one: Optional[_models.ModelThree] = None,
-        *,
-        content_type: str = "application/json",
-        **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_two(
-        self, parameter_one: Optional[IO[bytes]] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Default value is None.
-        :type parameter_one: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_two(
-        self, parameter_one: Optional[Union[_models.ModelThree, IO[bytes]]] = None, **kwargs: Any
-    ) -> _models.ModelThree:
-        """TestTwo should be in OperationGroupOneOperations. Takes in ModelThree and ouputs ModelThree.
-
-        :param parameter_one: A ModelThree parameter. Is either a ModelThree type or a IO[bytes] type.
-         Default value is None.
-        :type parameter_one: ~multiapiwithsubmodule.submodule.v3.models.ModelThree or IO[bytes]
-        :return: ModelThree or the result of cls(response)
-        :rtype: ~multiapiwithsubmodule.submodule.v3.models.ModelThree
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if parameter_one else None
-        cls: ClsType[_models.ModelThree] = kwargs.pop("cls", None)
-
-        content_type = content_type or "application/json" if parameter_one else None
-        _json = None
-        _content = None
-        if isinstance(parameter_one, (IOBase, bytes)):
-            _content = parameter_one
-        else:
-            if parameter_one is not None:
-                _json = self._serialize.body(parameter_one, "ModelThree")
-            else:
-                _json = None
-
-        _request = build_test_two_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        deserialized = self._deserialize("ModelThree", pipeline_response.http_response)
-
-        if cls:
-            return cls(pipeline_response, deserialized, {})  # type: ignore
-
-        return deserialized  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_two_operations.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_two_operations.py
deleted file mode 100644
index f39c37cefd3..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_operation_group_two_operations.py
+++ /dev/null
@@ -1,239 +0,0 @@
-# coding=utf-8
-# --------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for license information.
-# Code generated by Microsoft (R) AutoRest Code Generator.
-# Changes may cause incorrect behavior and will be lost if the code is regenerated.
-# --------------------------------------------------------------------------
-from collections.abc import MutableMapping
-from io import IOBase
-from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
-
-from azure.core import PipelineClient
-from azure.core.exceptions import (
-    ClientAuthenticationError,
-    HttpResponseError,
-    ResourceExistsError,
-    ResourceNotFoundError,
-    ResourceNotModifiedError,
-    map_error,
-)
-from azure.core.pipeline import PipelineResponse
-from azure.core.rest import HttpRequest, HttpResponse
-from azure.core.tracing.decorator import distributed_trace
-from azure.core.utils import case_insensitive_dict
-from azure.mgmt.core.exceptions import ARMErrorFormat
-
-from .. import models as _models
-from .._configuration import MultiapiServiceClientConfiguration
-from .._utils.serialization import Deserializer, Serializer
-
-T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
-
-_SERIALIZER = Serializer()
-_SERIALIZER.client_side_validation = False
-
-
-def build_test_four_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFourEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    if content_type is not None:
-        _headers["Content-Type"] = _SERIALIZER.header("content_type", content_type, "str")
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="POST", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-def build_test_five_request(**kwargs: Any) -> HttpRequest:
-    _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-    _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "3.0.0"))
-    accept = _headers.pop("Accept", "application/json")
-
-    # Construct URL
-    _url = kwargs.pop("template_url", "/multiapi/two/testFiveEndpoint")
-
-    # Construct parameters
-    _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
-
-    # Construct headers
-    _headers["Accept"] = _SERIALIZER.header("accept", accept, "str")
-
-    return HttpRequest(method="PUT", url=_url, params=_params, headers=_headers, **kwargs)
-
-
-class OperationGroupTwoOperations:
-    """
-    .. warning::
-        **DO NOT** instantiate this class directly.
-
-        Instead, you should access the following operations through
-        :class:`~multiapiwithsubmodule.submodule.v3.MultiapiServiceClient`'s
-        :attr:`operation_group_two` attribute.
-    """
-
-    models = _models
-
-    def __init__(self, *args, **kwargs) -> None:
-        input_args = list(args)
-        self._client: PipelineClient = input_args.pop(0) if input_args else kwargs.pop("client")
-        self._config: MultiapiServiceClientConfiguration = input_args.pop(0) if input_args else kwargs.pop("config")
-        self._serialize: Serializer = input_args.pop(0) if input_args else kwargs.pop("serializer")
-        self._deserialize: Deserializer = input_args.pop(0) if input_args else kwargs.pop("deserializer")
-        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
-
-    @overload
-    def test_four(
-        self, input: Optional[_models.SourcePath] = None, *, content_type: str = "application/json", **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: ~multiapiwithsubmodule.submodule.v3.models.SourcePath
-        :keyword content_type: Body Parameter content-type. Content type parameter for JSON body.
-         Default value is "application/json".
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @overload
-    def test_four(
-        self, input: Optional[IO[bytes]] = None, *, content_type: Optional[str] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Default value is None.
-        :type input: IO[bytes]
-        :keyword content_type: Body Parameter content-type. Content type parameter for binary body.
-         Known values are: 'application/json', 'application/pdf', 'image/jpeg', 'image/png',
-         'image/tiff'. Default value is None.
-        :paramtype content_type: str
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-
-    @distributed_trace
-    def test_four(  # pylint: disable=inconsistent-return-statements
-        self, input: Optional[Union[_models.SourcePath, IO[bytes]]] = None, **kwargs: Any
-    ) -> None:
-        """TestFour should be in OperationGroupTwoOperations.
-
-        :param input: Input parameter. Is either a SourcePath type or a IO[bytes] type. Default value
-         is None.
-        :type input: ~multiapiwithsubmodule.submodule.v3.models.SourcePath or IO[bytes]
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
-        content_type = content_type if input else None
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _json = None
-        _content = None
-        if isinstance(input, (IOBase, bytes)):
-            _content = input
-        else:
-            if input is not None:
-                _json = self._serialize.body(input, "SourcePath")
-            else:
-                _json = None
-            content_type = content_type or "application/json" if input else None
-
-        _request = build_test_four_request(
-            api_version=api_version,
-            content_type=content_type,
-            json=_json,
-            content=_content,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
-
-    @distributed_trace
-    def test_five(self, **kwargs: Any) -> None:  # pylint: disable=inconsistent-return-statements
-        """TestFive should be in OperationGroupTwoOperations.
-
-        :return: None or the result of cls(response)
-        :rtype: None
-        :raises ~azure.core.exceptions.HttpResponseError:
-        """
-        error_map: MutableMapping = {
-            401: ClientAuthenticationError,
-            404: ResourceNotFoundError,
-            409: ResourceExistsError,
-            304: ResourceNotModifiedError,
-        }
-        error_map.update(kwargs.pop("error_map", {}) or {})
-
-        _headers = kwargs.pop("headers", {}) or {}
-        _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
-
-        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "3.0.0"))
-        cls: ClsType[None] = kwargs.pop("cls", None)
-
-        _request = build_test_five_request(
-            api_version=api_version,
-            headers=_headers,
-            params=_params,
-        )
-        _request.url = self._client.format_url(_request.url)
-
-        _stream = False
-        pipeline_response: PipelineResponse = self._client._pipeline.run(  # pylint: disable=protected-access
-            _request, stream=_stream, **kwargs
-        )
-
-        response = pipeline_response.http_response
-
-        if response.status_code not in [200]:
-            map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.Error, pipeline_response)
-            raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
-
-        if cls:
-            return cls(pipeline_response, None, {})  # type: ignore
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_patch.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_patch.py
deleted file mode 100644
index 49900f6ab12..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/operations/_patch.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# ------------------------------------
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT License.
-# ------------------------------------
-
-"""Customize generated code here.
-
-Follow our quickstart for examples: https://aka.ms/azsdk/python/dpcodegen/python/customize
-"""
-from typing import List
-
-__all__: List[str] = []  # Add all objects you want publicly available to users at this package level
-
-
-def patch_sdk():
-    """Do not remove from this file.
-
-    `patch_sdk` is a last resort escape hatch that allows you to do customizations
-    you can't accomplish using the techniques described in
-    https://aka.ms/azsdk/python/dpcodegen/python/customize
-    """
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/py.typed b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/py.typed
deleted file mode 100644
index e5aff4f83af..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3/py.typed
+++ /dev/null
@@ -1 +0,0 @@
-# Marker file for PEP 561.
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/setup.py b/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/setup.py
deleted file mode 100644
index 88c5ed83436..00000000000
--- a/packages/autorest.python/test/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/setup.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# coding=utf-8
-#-------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See License.txt in the project root for
-# license information.
-#--------------------------------------------------------------------------
-# coding: utf-8
-
-from setuptools import setup, find_packages
-
-NAME = "multiapiwithsubmodule"
-VERSION = "0.1.0"
-
-# To install the library, run the following
-#
-# python setup.py install
-#
-# prerequisite: setuptools
-# http://pypi.python.org/pypi/setuptools
-
-REQUIRES = ["msrest>=0.6.0", "azure-core<2.0.0,>=1.2.0"]
-
-setup(
-    name=NAME,
-    version=VERSION,
-    description="multiapiwithsubmodule",
-    author_email="",
-    url="",
-    keywords=["Swagger", "multiapiwithsubmodule"],
-    install_requires=REQUIRES,
-    packages=find_packages(),
-    include_package_data=True,
-    long_description="""\
-    This ready contains multiple API versions, to help you deal with all of the Azure clouds
-    (Azure Stack, Azure Government, Azure China, etc.).
-    By default, it uses the latest API version available on public Azure.
-    For production, you should stick to a particular api-version and/or profile.
-    The profile sets a mapping between an operation group and its API version.
-    The api-version parameter sets the default API version if the operation
-    group is not described in the profile.
-    """
-)
diff --git a/packages/autorest.python/test/multiapi/pytest.ini b/packages/autorest.python/test/multiapi/pytest.ini
deleted file mode 100644
index d6bacf50ecf..00000000000
--- a/packages/autorest.python/test/multiapi/pytest.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[pytest]
-usefixtures = testserver
-xfail_strict=true
\ No newline at end of file
diff --git a/packages/autorest.python/test/multiapi/requirements.txt b/packages/autorest.python/test/multiapi/requirements.txt
deleted file mode 100644
index c8b51ce8829..00000000000
--- a/packages/autorest.python/test/multiapi/requirements.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-aiohttp; python_full_version >= '3.5.2'
-azure-common
-msrest==0.7.1
-azure-mgmt-core==1.6.0
-pytest
-pytest-cov
-pytest-asyncio==0.14.0;python_full_version>="3.5.2"
-async_generator;python_full_version>="3.5.2"
--e ./Expected/AcceptanceTests/Multiapi
--e ./Expected/AcceptanceTests/MultiapiWithSubmodule
--e ./Expected/AcceptanceTests/MultiapiNoAsync
--e ./Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy
--e ./Expected/AcceptanceTests/MultiapiKeywordOnly
--e ./Expected/AcceptanceTests/MultiapiDataPlane
--e ./Expected/AcceptanceTests/MultiapiCustomBaseUrl
--e ./Expected/AcceptanceTests/MultiapiSecurity
diff --git a/packages/autorest.python/test/multiapi/specification/multiapi/README.md b/packages/autorest.python/test/multiapi/specification/multiapi/README.md
deleted file mode 100644
index 09cdf99f68d..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapi/README.md
+++ /dev/null
@@ -1,58 +0,0 @@
-# Testing multiapi
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v0'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v0.json
-namespace: multiapi.v0
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v0
-```
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapi.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapi.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapi.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/v3
-```
-
-### Settings
-``` yaml
-package-name: multiapi
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-azure-arm: true
-add-credentials: true
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v0
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/Multiapi/multiapi/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapicredentialdefaultpolicy/README.md b/packages/autorest.python/test/multiapi/specification/multiapicredentialdefaultpolicy/README.md
deleted file mode 100644
index 1b5a28a07f2..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapicredentialdefaultpolicy/README.md
+++ /dev/null
@@ -1,52 +0,0 @@
-# Testing multiapi
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapicredentialdefaultpolicy.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapicredentialdefaultpolicy.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapicredentialdefaultpolicy.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/v3
-```
-
-### Settings
-``` yaml
-package-name: multiapicredentialdefaultpolicy
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-azure-arm: true
-add-credentials: true
-credential-default-policy-type: AzureKeyCredentialPolicy
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCredentialDefaultPolicy/multiapicredentialdefaultpolicy/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapicustombaseurl/README.md b/packages/autorest.python/test/multiapi/specification/multiapicustombaseurl/README.md
deleted file mode 100644
index 4c300b5c00e..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapicustombaseurl/README.md
+++ /dev/null
@@ -1,39 +0,0 @@
-# Testing multiapi custom base url
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1-custom-base-url.json
-namespace: multiapicustombaseurl.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2-custom-base-url.json
-namespace: multiapicustombaseurl.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/v2
-```
-
-### Settings
-``` yaml
-package-name: multiapicustombaseurl
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-add-credentials: true
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiCustomBaseUrl/multiapicustombaseurl/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapidataplane/README.md b/packages/autorest.python/test/multiapi/specification/multiapidataplane/README.md
deleted file mode 100644
index 158374dd780..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapidataplane/README.md
+++ /dev/null
@@ -1,50 +0,0 @@
-# Testing multiapi data plane
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapidataplane.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapidataplane.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapidataplane.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/v3
-```
-
-### Settings
-``` yaml
-package-name: multiapidataplane
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-add-credentials: true
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiDataPlane/multiapidataplane/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapikeywordonly/README.md b/packages/autorest.python/test/multiapi/specification/multiapikeywordonly/README.md
deleted file mode 100644
index 687683c8a75..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapikeywordonly/README.md
+++ /dev/null
@@ -1,47 +0,0 @@
-# Testing multiapi keyword only
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapikeywordonly.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapikeywordonly.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapikeywordonly.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/v3
-```
-
-### Settings
-``` yaml
-package-name: multiapikeywordonly
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-add-credentials: true
-python3-only: true
-version-tolerant: false
-only-path-and-body-params-positional: true
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiKeywordOnly/multiapikeywordonly/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapinoasync/README.md b/packages/autorest.python/test/multiapi/specification/multiapinoasync/README.md
deleted file mode 100644
index 5546f909929..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapinoasync/README.md
+++ /dev/null
@@ -1,52 +0,0 @@
-# Testing multiapi
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapinoasync.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapinoasync.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapinoasync.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/v3
-```
-
-### Settings
-``` yaml
-package-name: multiapinoasync
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-azure-arm: true
-add-credentials: true
-no-async: true
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiNoAsync/multiapinoasync/
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapisecurity/README.md b/packages/autorest.python/test/multiapi/specification/multiapisecurity/README.md
deleted file mode 100644
index 9caca9e8fef..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapisecurity/README.md
+++ /dev/null
@@ -1,42 +0,0 @@
-# Testing MultiapiSecurity
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v0'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v0.json
-namespace: multiapisecurity.v0
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v0
-```
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapisecurity.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/v1
-```
-
-### Settings
-``` yaml
-package-name: multiapisecurity
-no-namespace-folders: true
-license-header: MICROSOFT_MIT_NO_VERSION
-security: AADToken
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-clear-output-folder: true
-batch:
-    - tag: v0
-    - tag: v1
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiSecurity/multiapisecurity/
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/specification/multiapiwithsubmodule/README.md b/packages/autorest.python/test/multiapi/specification/multiapiwithsubmodule/README.md
deleted file mode 100644
index c6b37deb834..00000000000
--- a/packages/autorest.python/test/multiapi/specification/multiapiwithsubmodule/README.md
+++ /dev/null
@@ -1,52 +0,0 @@
-# Testing multiapi
-
-### Tag: v1
-
-These settings apply only when `--tag=v1` is specified on the command line.
-
-``` yaml $(tag) == 'v1'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v1.json
-namespace: multiapiwithsubmodule.submodule.v1
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v1
-```
-
-``` yaml $(tag) == 'v2'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v2.json
-namespace: multiapiwithsubmodule.submodule.v2
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v2
-```
-
-``` yaml $(tag) == 'v3'
-input-file: ../../../../node_modules/@microsoft.azure/autorest.testserver/swagger/multiapi-v3.json
-namespace: multiapiwithsubmodule.submodule.v3
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule/v3
-```
-
-### Settings
-``` yaml
-license-header: MICROSOFT_MIT_NO_VERSION
-azure-arm: true
-add-credentials: true
-no-namespace-folders: true
-python3-only: true
-version-tolerant: false
-```
-
-``` yaml $(multiapi)
-package-name: multiapiwithsubmodule
-clear-output-folder: true
-batch:
-    - tag: v1
-    - tag: v2
-    - tag: v3
-    - multiapiscript: true
-```
-
-### Multi-api script
-
-``` yaml $(multiapiscript)
-package-name: multiapiwithsubmodule#submodule
-output-folder: $(python-sdks-folder)/multiapi/Expected/AcceptanceTests/MultiapiWithSubmodule/multiapiwithsubmodule/submodule
-clear-output-folder: false
-perform-load: false
-```
diff --git a/packages/autorest.python/test/multiapi/tox.ini b/packages/autorest.python/test/multiapi/tox.ini
deleted file mode 100644
index fc5940fb3f5..00000000000
--- a/packages/autorest.python/test/multiapi/tox.ini
+++ /dev/null
@@ -1,35 +0,0 @@
-[tox]
-envlist=py38, py310, py311, py313
-skipsdist=True
-
-[testenv]
-passenv=*
-deps=
-    -r requirements.txt
-    -r ../../../../eng/dev_requirements.txt
-commands=
-    pytest
-
-[testenv:ci]
-commands =
-    pytest
-
-[testenv:sphinx]
-; setenv =
-;   SPHINX_APIDOC_OPTIONS=members,undoc-members,inherited-members
-deps =
-  -r requirements.txt
-  sphinx
-  sphinx_rtd_theme
-  recommonmark
-  m2r
-changedir = doc
-commands =
-  sphinx-apidoc -f -o . ../Expected/AcceptanceTests/Multiapi
-  sphinx-apidoc -f -o . ../Expected/AcceptanceTests/MultiapiSubmodule
-  sphinx-build . _build
-
-[testenv:apiview]
-commands =
-    pip install apiview-stub-generator==0.3.19 --index-url="https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-python/pypi/simple/"
-    python ../../../../eng/scripts/run_apiview.py -t multiapi

From ade0633797acb37a4150031cef19f55e3fe04021 Mon Sep 17 00:00:00 2001
From: Yuchao Yan <yuchaoyan@microsoft.com>
Date: Thu, 28 Aug 2025 11:20:23 +0800
Subject: [PATCH 3/5] deprecate multiapi

---
 .chronus/changes/copilot-fix-3187-2025-7-28-11-20-7.md | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 .chronus/changes/copilot-fix-3187-2025-7-28-11-20-7.md

diff --git a/.chronus/changes/copilot-fix-3187-2025-7-28-11-20-7.md b/.chronus/changes/copilot-fix-3187-2025-7-28-11-20-7.md
new file mode 100644
index 00000000000..ac5425946bb
--- /dev/null
+++ b/.chronus/changes/copilot-fix-3187-2025-7-28-11-20-7.md
@@ -0,0 +1,7 @@
+---
+changeKind: deprecation
+packages:
+  - "@autorest/python"
+---
+
+Deprecate multiapi
\ No newline at end of file

From 45c44b69176f3109e9b04eab972170b39f8da8a8 Mon Sep 17 00:00:00 2001
From: iscai-msft <isabellavcai@gmail.com>
Date: Thu, 28 Aug 2025 15:05:21 -0400
Subject: [PATCH 4/5] test http-client-python without multiapi

---
 packages/autorest.python/package.json |  4 ++--
 packages/typespec-python/package.json |  4 ++--
 pnpm-lock.yaml                        | 14 +++++++-------
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/packages/autorest.python/package.json b/packages/autorest.python/package.json
index 7f5a0ce40aa..f85c96c4ad6 100644
--- a/packages/autorest.python/package.json
+++ b/packages/autorest.python/package.json
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/Azure/autorest.python/blob/main/README.md",
   "dependencies": {
-    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz",
     "@autorest/system-requirements": "~1.0.2",
     "fs-extra": "~11.2.0",
     "tsx": "~4.19.1"
@@ -47,4 +47,4 @@
     "requirements.txt",
     "generator/"
   ]
-}
\ No newline at end of file
+}
diff --git a/packages/typespec-python/package.json b/packages/typespec-python/package.json
index 51855b60b40..5abf0c8b33c 100644
--- a/packages/typespec-python/package.json
+++ b/packages/typespec-python/package.json
@@ -67,7 +67,7 @@
     "js-yaml": "~4.1.0",
     "semver": "~7.6.2",
     "tsx": "~4.19.1",
-    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz",
     "fs-extra": "~11.2.0"
   },
   "devDependencies": {
@@ -103,4 +103,4 @@
     "chalk": "5.3.0",
     "@types/fs-extra": "11.0.4"
   }
-}
\ No newline at end of file
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 38834a48447..05b115334c5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -60,8 +60,8 @@ importers:
         specifier: ~1.0.2
         version: 1.0.2
       '@typespec/http-client-python':
-        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz
-        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)
+        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz
+        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)
       fs-extra:
         specifier: ~11.2.0
         version: 11.2.0
@@ -82,8 +82,8 @@ importers:
   packages/typespec-python:
     dependencies:
       '@typespec/http-client-python':
-        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz
-        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)
+        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz
+        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)
       fs-extra:
         specifier: ~11.2.0
         version: 11.2.0
@@ -1677,8 +1677,8 @@ packages:
     peerDependencies:
       '@typespec/compiler': ^1.3.0
 
-  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz':
-    resolution: {tarball: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz}
+  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz':
+    resolution: {tarball: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz}
     version: 0.15.2
     engines: {node: '>=20.0.0'}
     peerDependencies:
@@ -6460,7 +6460,7 @@ snapshots:
     dependencies:
       '@typespec/compiler': 1.3.0(@types/node@24.1.0)
 
-  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI0ODczMy9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)':
+  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTI3Mzg0Ny9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.15.2.tgz(6gtvfxfythggrmyik6oqzxhslm)':
     dependencies:
       '@azure-tools/typespec-autorest': 0.59.0(tlfj6gbglsbr5x2lirzpm33h7y)
       '@azure-tools/typespec-azure-core': 0.59.0(@typespec/compiler@1.3.0(@types/node@24.1.0))(@typespec/http@1.3.0(@typespec/compiler@1.3.0(@types/node@24.1.0))(@typespec/streams@0.73.0(@typespec/compiler@1.3.0(@types/node@24.1.0))))(@typespec/rest@0.73.0(@typespec/compiler@1.3.0(@types/node@24.1.0))(@typespec/http@1.3.0(@typespec/compiler@1.3.0(@types/node@24.1.0))(@typespec/streams@0.73.0(@typespec/compiler@1.3.0(@types/node@24.1.0)))))

From 732ef632555a04e8d904239aefc2135d44348b8e Mon Sep 17 00:00:00 2001
From: iscai-msft <isabellavcai@gmail.com>
Date: Thu, 28 Aug 2025 15:20:19 -0400
Subject: [PATCH 5/5] add changeset for typespec-python

---
 .chronus/changes/copilot-fix-3187-2025-7-28-15-20-11.md | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 .chronus/changes/copilot-fix-3187-2025-7-28-15-20-11.md

diff --git a/.chronus/changes/copilot-fix-3187-2025-7-28-15-20-11.md b/.chronus/changes/copilot-fix-3187-2025-7-28-15-20-11.md
new file mode 100644
index 00000000000..8667e7988cb
--- /dev/null
+++ b/.chronus/changes/copilot-fix-3187-2025-7-28-15-20-11.md
@@ -0,0 +1,7 @@
+---
+changeKind: dependencies
+packages:
+  - "@azure-tools/typespec-python"
+---
+
+Bump dep on `http-client-python`
\ No newline at end of file