diff --git a/packages/autorest.python/package.json b/packages/autorest.python/package.json
index 8c9193665db..a9cdda59015 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": "~0.12.4",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.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 7b09e3d4347..da13347986f 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": "~0.12.4",
+    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.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/packages/typespec-python/test/unbranded/generated/authentication-api-key/README.md b/packages/typespec-python/test/unbranded/generated/authentication-api-key/README.md
index e69de29bb2d..37844352395 100644
--- a/packages/typespec-python/test/unbranded/generated/authentication-api-key/README.md
+++ b/packages/typespec-python/test/unbranded/generated/authentication-api-key/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from authentication.apikey import ApiKeyClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ApiKeyClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/authentication-http-custom/README.md b/packages/typespec-python/test/unbranded/generated/authentication-http-custom/README.md
index e69de29bb2d..a2e06c36e0d 100644
--- a/packages/typespec-python/test/unbranded/generated/authentication-http-custom/README.md
+++ b/packages/typespec-python/test/unbranded/generated/authentication-http-custom/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from authentication.http.custom import CustomClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = CustomClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/authentication-oauth2/README.md b/packages/typespec-python/test/unbranded/generated/authentication-oauth2/README.md
index e69de29bb2d..e362fb1a1fb 100644
--- a/packages/typespec-python/test/unbranded/generated/authentication-oauth2/README.md
+++ b/packages/typespec-python/test/unbranded/generated/authentication-oauth2/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from authentication.oauth2 import OAuth2Client
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = OAuth2Client(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/authentication-union/README.md b/packages/typespec-python/test/unbranded/generated/authentication-union/README.md
index e69de29bb2d..8239116704a 100644
--- a/packages/typespec-python/test/unbranded/generated/authentication-union/README.md
+++ b/packages/typespec-python/test/unbranded/generated/authentication-union/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from authentication.union import UnionClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = UnionClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/encode-bytes/README.md b/packages/typespec-python/test/unbranded/generated/encode-bytes/README.md
index e69de29bb2d..a97e7a4fe94 100644
--- a/packages/typespec-python/test/unbranded/generated/encode-bytes/README.md
+++ b/packages/typespec-python/test/unbranded/generated/encode-bytes/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from encode.bytes import BytesClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = BytesClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/encode-datetime/README.md b/packages/typespec-python/test/unbranded/generated/encode-datetime/README.md
index e69de29bb2d..09e1b79195c 100644
--- a/packages/typespec-python/test/unbranded/generated/encode-datetime/README.md
+++ b/packages/typespec-python/test/unbranded/generated/encode-datetime/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from encode.datetime import DatetimeClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = DatetimeClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/encode-duration/README.md b/packages/typespec-python/test/unbranded/generated/encode-duration/README.md
index e69de29bb2d..ce9f34eca17 100644
--- a/packages/typespec-python/test/unbranded/generated/encode-duration/README.md
+++ b/packages/typespec-python/test/unbranded/generated/encode-duration/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from encode.duration import DurationClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = DurationClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/encode-numeric/README.md b/packages/typespec-python/test/unbranded/generated/encode-numeric/README.md
index e69de29bb2d..4a581d84c75 100644
--- a/packages/typespec-python/test/unbranded/generated/encode-numeric/README.md
+++ b/packages/typespec-python/test/unbranded/generated/encode-numeric/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from encode.numeric import NumericClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NumericClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/headasbooleanfalse/README.md b/packages/typespec-python/test/unbranded/generated/headasbooleanfalse/README.md
index e69de29bb2d..408f9cb907d 100644
--- a/packages/typespec-python/test/unbranded/generated/headasbooleanfalse/README.md
+++ b/packages/typespec-python/test/unbranded/generated/headasbooleanfalse/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from headasbooleanfalse import VisibilityClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = VisibilityClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/headasbooleantrue/README.md b/packages/typespec-python/test/unbranded/generated/headasbooleantrue/README.md
index e69de29bb2d..3357bf62897 100644
--- a/packages/typespec-python/test/unbranded/generated/headasbooleantrue/README.md
+++ b/packages/typespec-python/test/unbranded/generated/headasbooleantrue/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from headasbooleantrue import VisibilityClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = VisibilityClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/parameters-basic/README.md b/packages/typespec-python/test/unbranded/generated/parameters-basic/README.md
index e69de29bb2d..3a7384edb8f 100644
--- a/packages/typespec-python/test/unbranded/generated/parameters-basic/README.md
+++ b/packages/typespec-python/test/unbranded/generated/parameters-basic/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from parameters.basic import BasicClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = BasicClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/parameters-body-optionality/README.md b/packages/typespec-python/test/unbranded/generated/parameters-body-optionality/README.md
index e69de29bb2d..e32bf7e75ad 100644
--- a/packages/typespec-python/test/unbranded/generated/parameters-body-optionality/README.md
+++ b/packages/typespec-python/test/unbranded/generated/parameters-body-optionality/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from parameters.bodyoptionality import BodyOptionalityClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = BodyOptionalityClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/parameters-collection-format/README.md b/packages/typespec-python/test/unbranded/generated/parameters-collection-format/README.md
index e69de29bb2d..709974c7cf5 100644
--- a/packages/typespec-python/test/unbranded/generated/parameters-collection-format/README.md
+++ b/packages/typespec-python/test/unbranded/generated/parameters-collection-format/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from parameters.collectionformat import CollectionFormatClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = CollectionFormatClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/parameters-path/README.md b/packages/typespec-python/test/unbranded/generated/parameters-path/README.md
index e69de29bb2d..9553db4d2d2 100644
--- a/packages/typespec-python/test/unbranded/generated/parameters-path/README.md
+++ b/packages/typespec-python/test/unbranded/generated/parameters-path/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from parameters.path import PathClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = PathClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/parameters-spread/README.md b/packages/typespec-python/test/unbranded/generated/parameters-spread/README.md
index e69de29bb2d..a77c2dd610a 100644
--- a/packages/typespec-python/test/unbranded/generated/parameters-spread/README.md
+++ b/packages/typespec-python/test/unbranded/generated/parameters-spread/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from parameters.spread import SpreadClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = SpreadClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-content-negotiation/README.md b/packages/typespec-python/test/unbranded/generated/payload-content-negotiation/README.md
index e69de29bb2d..944bf2301d0 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-content-negotiation/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-content-negotiation/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.contentnegotiation import ContentNegotiationClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ContentNegotiationClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-json-merge-patch/README.md b/packages/typespec-python/test/unbranded/generated/payload-json-merge-patch/README.md
index e69de29bb2d..c7ce8490498 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-json-merge-patch/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-json-merge-patch/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.jsonmergepatch import JsonMergePatchClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = JsonMergePatchClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-media-type/README.md b/packages/typespec-python/test/unbranded/generated/payload-media-type/README.md
index e69de29bb2d..a086a5cd087 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-media-type/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-media-type/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.mediatype import MediaTypeClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = MediaTypeClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-multipart/README.md b/packages/typespec-python/test/unbranded/generated/payload-multipart/README.md
index e69de29bb2d..805f0375934 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-multipart/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-multipart/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.multipart import MultiPartClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = MultiPartClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-pageable/README.md b/packages/typespec-python/test/unbranded/generated/payload-pageable/README.md
index e69de29bb2d..09c8c42b49e 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-pageable/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-pageable/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.pageable import PageableClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = PageableClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/payload-xml/README.md b/packages/typespec-python/test/unbranded/generated/payload-xml/README.md
index e69de29bb2d..7b60393cd57 100644
--- a/packages/typespec-python/test/unbranded/generated/payload-xml/README.md
+++ b/packages/typespec-python/test/unbranded/generated/payload-xml/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from payload.xml import XmlClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = XmlClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/response-status-code-range/README.md b/packages/typespec-python/test/unbranded/generated/response-status-code-range/README.md
index e69de29bb2d..6763a951871 100644
--- a/packages/typespec-python/test/unbranded/generated/response-status-code-range/README.md
+++ b/packages/typespec-python/test/unbranded/generated/response-status-code-range/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from response.statuscoderange import StatusCodeRangeClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = StatusCodeRangeClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/routes/README.md b/packages/typespec-python/test/unbranded/generated/routes/README.md
index e69de29bb2d..9d9680073f1 100644
--- a/packages/typespec-python/test/unbranded/generated/routes/README.md
+++ b/packages/typespec-python/test/unbranded/generated/routes/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from routes import RoutesClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = RoutesClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/serialization-encoded-name-json/README.md b/packages/typespec-python/test/unbranded/generated/serialization-encoded-name-json/README.md
index e69de29bb2d..882d32bbb67 100644
--- a/packages/typespec-python/test/unbranded/generated/serialization-encoded-name-json/README.md
+++ b/packages/typespec-python/test/unbranded/generated/serialization-encoded-name-json/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from serialization.encodedname.json import JsonClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = JsonClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/server-endpoint-not-defined/README.md b/packages/typespec-python/test/unbranded/generated/server-endpoint-not-defined/README.md
index e69de29bb2d..e1bdcb1e5e9 100644
--- a/packages/typespec-python/test/unbranded/generated/server-endpoint-not-defined/README.md
+++ b/packages/typespec-python/test/unbranded/generated/server-endpoint-not-defined/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from server.endpoint.notdefined import NotDefinedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NotDefinedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/server-path-multiple/README.md b/packages/typespec-python/test/unbranded/generated/server-path-multiple/README.md
index e69de29bb2d..ad88a2aadb5 100644
--- a/packages/typespec-python/test/unbranded/generated/server-path-multiple/README.md
+++ b/packages/typespec-python/test/unbranded/generated/server-path-multiple/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from server.path.multiple import MultipleClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = MultipleClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/server-path-single/README.md b/packages/typespec-python/test/unbranded/generated/server-path-single/README.md
index e69de29bb2d..45e2d36cea1 100644
--- a/packages/typespec-python/test/unbranded/generated/server-path-single/README.md
+++ b/packages/typespec-python/test/unbranded/generated/server-path-single/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from server.path.single import SingleClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = SingleClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/server-versions-not-versioned/README.md b/packages/typespec-python/test/unbranded/generated/server-versions-not-versioned/README.md
index e69de29bb2d..cf3545d8047 100644
--- a/packages/typespec-python/test/unbranded/generated/server-versions-not-versioned/README.md
+++ b/packages/typespec-python/test/unbranded/generated/server-versions-not-versioned/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from server.versions.notversioned import NotVersionedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NotVersionedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/server-versions-versioned/README.md b/packages/typespec-python/test/unbranded/generated/server-versions-versioned/README.md
index e69de29bb2d..3d85658cf89 100644
--- a/packages/typespec-python/test/unbranded/generated/server-versions-versioned/README.md
+++ b/packages/typespec-python/test/unbranded/generated/server-versions-versioned/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from server.versions.versioned import VersionedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = VersionedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/special-headers-conditional-request/README.md b/packages/typespec-python/test/unbranded/generated/special-headers-conditional-request/README.md
index e69de29bb2d..428a1fbf79c 100644
--- a/packages/typespec-python/test/unbranded/generated/special-headers-conditional-request/README.md
+++ b/packages/typespec-python/test/unbranded/generated/special-headers-conditional-request/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from specialheaders.conditionalrequest import ConditionalRequestClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ConditionalRequestClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/special-headers-repeatability/README.md b/packages/typespec-python/test/unbranded/generated/special-headers-repeatability/README.md
index e69de29bb2d..25f251de023 100644
--- a/packages/typespec-python/test/unbranded/generated/special-headers-repeatability/README.md
+++ b/packages/typespec-python/test/unbranded/generated/special-headers-repeatability/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from specialheaders.repeatability import RepeatabilityClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = RepeatabilityClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/special-words/README.md b/packages/typespec-python/test/unbranded/generated/special-words/README.md
index e69de29bb2d..2dc90c43014 100644
--- a/packages/typespec-python/test/unbranded/generated/special-words/README.md
+++ b/packages/typespec-python/test/unbranded/generated/special-words/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from specialwords import SpecialWordsClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = SpecialWordsClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/streaming-jsonl/README.md b/packages/typespec-python/test/unbranded/generated/streaming-jsonl/README.md
index e69de29bb2d..bf649f2779f 100644
--- a/packages/typespec-python/test/unbranded/generated/streaming-jsonl/README.md
+++ b/packages/typespec-python/test/unbranded/generated/streaming-jsonl/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from streaming.jsonl import JsonlClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = JsonlClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-array/README.md b/packages/typespec-python/test/unbranded/generated/typetest-array/README.md
index e69de29bb2d..bfd89d270dc 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-array/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-array/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.array import ArrayClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ArrayClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-dictionary/README.md b/packages/typespec-python/test/unbranded/generated/typetest-dictionary/README.md
index e69de29bb2d..89a49f9854e 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-dictionary/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-dictionary/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.dictionary import DictionaryClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = DictionaryClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-enum-extensible/README.md b/packages/typespec-python/test/unbranded/generated/typetest-enum-extensible/README.md
index e69de29bb2d..a19bd904a42 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-enum-extensible/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-enum-extensible/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.enum.extensible import ExtensibleClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ExtensibleClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-enum-fixed/README.md b/packages/typespec-python/test/unbranded/generated/typetest-enum-fixed/README.md
index e69de29bb2d..1bcb66a9a7c 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-enum-fixed/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-enum-fixed/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.enum.fixed import FixedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = FixedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-empty/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-empty/README.md
index e69de29bb2d..de0f55a3dff 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-empty/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-empty/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.empty import EmptyClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = EmptyClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-enumdiscriminator/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-enumdiscriminator/README.md
index e69de29bb2d..d2acef67e6e 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-enumdiscriminator/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-enumdiscriminator/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.enumdiscriminator import EnumDiscriminatorClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = EnumDiscriminatorClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-nesteddiscriminator/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-nesteddiscriminator/README.md
index e69de29bb2d..73b173e3fe4 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-nesteddiscriminator/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-nesteddiscriminator/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.nesteddiscriminator import NestedDiscriminatorClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NestedDiscriminatorClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-notdiscriminated/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-notdiscriminated/README.md
index e69de29bb2d..8011c64f5d0 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-notdiscriminated/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-notdiscriminated/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.notdiscriminated import NotDiscriminatedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NotDiscriminatedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-recursive/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-recursive/README.md
index e69de29bb2d..1030ebb6ca3 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-recursive/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-recursive/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.recursive import RecursiveClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = RecursiveClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-singlediscriminator/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-singlediscriminator/README.md
index e69de29bb2d..574f9a34e05 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-singlediscriminator/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-singlediscriminator/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.singlediscriminator import SingleDiscriminatorClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = SingleDiscriminatorClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-usage/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-usage/README.md
index e69de29bb2d..51f197af553 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-usage/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-usage/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.usage import UsageClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = UsageClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-model-visibility/README.md b/packages/typespec-python/test/unbranded/generated/typetest-model-visibility/README.md
index e69de29bb2d..4fce83db734 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-model-visibility/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-model-visibility/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.model.visibility import VisibilityClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = VisibilityClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-property-additionalproperties/README.md b/packages/typespec-python/test/unbranded/generated/typetest-property-additionalproperties/README.md
index e69de29bb2d..827f43ccd15 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-property-additionalproperties/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-property-additionalproperties/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.property.additionalproperties import AdditionalPropertiesClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = AdditionalPropertiesClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-property-nullable/README.md b/packages/typespec-python/test/unbranded/generated/typetest-property-nullable/README.md
index e69de29bb2d..6208aa557ec 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-property-nullable/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-property-nullable/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.property.nullable import NullableClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = NullableClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-property-optional/README.md b/packages/typespec-python/test/unbranded/generated/typetest-property-optional/README.md
index e69de29bb2d..5a1d49aafaa 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-property-optional/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-property-optional/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.property.optional import OptionalClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = OptionalClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-property-valuetypes/README.md b/packages/typespec-python/test/unbranded/generated/typetest-property-valuetypes/README.md
index e69de29bb2d..92b2e36853c 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-property-valuetypes/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-property-valuetypes/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.property.valuetypes import ValueTypesClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ValueTypesClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-scalar/README.md b/packages/typespec-python/test/unbranded/generated/typetest-scalar/README.md
index e69de29bb2d..0cb16cafb4d 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-scalar/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-scalar/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.scalar import ScalarClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ScalarClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/typetest-union/README.md b/packages/typespec-python/test/unbranded/generated/typetest-union/README.md
index e69de29bb2d..0cbe1ace57c 100644
--- a/packages/typespec-python/test/unbranded/generated/typetest-union/README.md
+++ b/packages/typespec-python/test/unbranded/generated/typetest-union/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from typetest.union import UnionClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = UnionClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-added/README.md b/packages/typespec-python/test/unbranded/generated/versioning-added/README.md
index e69de29bb2d..1af71aaaca1 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-added/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-added/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.added import AddedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = AddedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-madeoptional/README.md b/packages/typespec-python/test/unbranded/generated/versioning-madeoptional/README.md
index e69de29bb2d..cf93a6cf700 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-madeoptional/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-madeoptional/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.madeoptional import MadeOptionalClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = MadeOptionalClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-removed/README.md b/packages/typespec-python/test/unbranded/generated/versioning-removed/README.md
index e69de29bb2d..93211362ad4 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-removed/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-removed/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.removed import RemovedClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = RemovedClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-renamedfrom/README.md b/packages/typespec-python/test/unbranded/generated/versioning-renamedfrom/README.md
index e69de29bb2d..5a2a2e9f674 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-renamedfrom/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-renamedfrom/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.renamedfrom import RenamedFromClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = RenamedFromClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-returntypechangedfrom/README.md b/packages/typespec-python/test/unbranded/generated/versioning-returntypechangedfrom/README.md
index e69de29bb2d..b1915355ee2 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-returntypechangedfrom/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-returntypechangedfrom/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.returntypechangedfrom import ReturnTypeChangedFromClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = ReturnTypeChangedFromClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/packages/typespec-python/test/unbranded/generated/versioning-typechangedfrom/README.md b/packages/typespec-python/test/unbranded/generated/versioning-typechangedfrom/README.md
index e69de29bb2d..2ee00a69088 100644
--- a/packages/typespec-python/test/unbranded/generated/versioning-typechangedfrom/README.md
+++ b/packages/typespec-python/test/unbranded/generated/versioning-typechangedfrom/README.md
@@ -0,0 +1,30 @@
+# Overview
+
+This package is generated by `@typespec/http-client-python` with Typespec.
+
+## Getting started
+
+### Prequisites
+
+- Python 3.9 or later is required to use this package.
+
+### Install the package
+
+Step into folder where setup.py is then run:
+
+```bash
+pip install -e .
+```
+
+### Examples
+
+```python
+>>> from versioning.typechangedfrom import TypeChangedFromClient
+>>> from corehttp.exceptions import HttpResponseError
+
+>>> client = TypeChangedFromClient(endpoint='<endpoint>')
+>>> try:
+        <!-- write code here -->
+    except HttpResponseError as e:
+        print('service responds error: {}'.format(e.response.json()))
+```
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 8f06bf53a43..70e2a94f6cf 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: ~0.12.4
-        version: 0.12.4(zqlw4u2idnbcqieabzlhuf7frq)
+        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz
+        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz(zqlw4u2idnbcqieabzlhuf7frq)
       fs-extra:
         specifier: ~11.2.0
         version: 11.2.0
@@ -82,8 +82,8 @@ importers:
   packages/typespec-python:
     dependencies:
       '@typespec/http-client-python':
-        specifier: ~0.12.4
-        version: 0.12.4(zqlw4u2idnbcqieabzlhuf7frq)
+        specifier: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz
+        version: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz(zqlw4u2idnbcqieabzlhuf7frq)
       fs-extra:
         specifier: ~11.2.0
         version: 11.2.0
@@ -1684,8 +1684,9 @@ packages:
     peerDependencies:
       '@typespec/compiler': ^1.1.0
 
-  '@typespec/http-client-python@0.12.4':
-    resolution: {integrity: sha512-jNS1zaqCgUbCfvf1N8AQb6w0XwrXgN95Z5CqUkmhzik7jAZY9OxFuIQbYGtv2yB4+K/cBgfuaNEc8T4j9t0hqQ==}
+  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz':
+    resolution: {tarball: https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz}
+    version: 0.12.4
     engines: {node: '>=20.0.0'}
     peerDependencies:
       '@azure-tools/typespec-autorest': '>=0.56.0 <1.0.0'
@@ -6437,7 +6438,7 @@ snapshots:
     dependencies:
       '@typespec/compiler': 1.1.0(@types/node@22.13.17)
 
-  '@typespec/http-client-python@0.12.4(zqlw4u2idnbcqieabzlhuf7frq)':
+  '@typespec/http-client-python@https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTAyNzc4NC9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.12.4.tgz(zqlw4u2idnbcqieabzlhuf7frq)':
     dependencies:
       '@azure-tools/typespec-autorest': 0.57.0(y57gch43lkhene77dcdsarymam)
       '@azure-tools/typespec-azure-core': 0.57.0(@typespec/compiler@1.1.0(@types/node@22.13.17))(@typespec/http@1.1.0(@typespec/compiler@1.1.0(@types/node@22.13.17))(@typespec/streams@0.71.0(@typespec/compiler@1.1.0(@types/node@22.13.17))))(@typespec/rest@0.71.0(@typespec/compiler@1.1.0(@types/node@22.13.17))(@typespec/http@1.1.0(@typespec/compiler@1.1.0(@types/node@22.13.17))(@typespec/streams@0.71.0(@typespec/compiler@1.1.0(@types/node@22.13.17)))))