diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a9e484a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+env/
+mypy_cache/
+typing_challenges/
\ No newline at end of file
diff --git a/constants.py b/constants.py
index 21b2c30..41b6957 100644
--- a/constants.py
+++ b/constants.py
@@ -1 +1 @@
-___ = None
+none_type = ___
diff --git a/level_1/1.py b/level_1/1.py
index 1813c9f..97ba86b 100644
--- a/level_1/1.py
+++ b/level_1/1.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def is_user_banned(user_id: ___) -> ___:
+def is_user_banned(user_id: int) -> bool:
     pass
 
 
diff --git a/level_1/10.py b/level_1/10.py
index d31d5d1..a1e2527 100644
--- a/level_1/10.py
+++ b/level_1/10.py
@@ -1,9 +1,10 @@
 import uuid
 
 from constants import ___
+from typing import Any
 
 
-def stringify(value: ___) -> ___:
+def stringify(value: Any) -> str:
     pass
 
 
diff --git a/level_1/2.py b/level_1/2.py
index 8a2c1bf..8558a13 100644
--- a/level_1/2.py
+++ b/level_1/2.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def is_adult(age: ___, country_name: ___) -> ___:
+def is_adult(age: int, country_name: str) -> bool:
     pass
 
 
diff --git a/level_1/3.py b/level_1/3.py
index ae55bfd..d1a1a16 100644
--- a/level_1/3.py
+++ b/level_1/3.py
@@ -1,10 +1,10 @@
-from constants import ___
+from constants import __
 
 
-def compose_full_name(first_name: ___, last_name: ___, middle_name: ___) -> ___:
+def compose_full_name(first_name: str, last_name: str, middle_name: str | None) -> str:
     pass
 
 
 if __name__ == "__main__":
-    assert compose_full_name(first_name="John", last_name="Doe", middle_name=None) == "Doe John"
-    assert compose_full_name(first_name="Ilya", last_name="Lebedev", middle_name="Alexeyevich") == "Lebedev Ilya Alexeyevich"
+    assert compose_full_name(first_name = "John", last_name = "Doe", middle_name = None) == "Doe John"
+    assert compose_full_name(first_name = "Ilya", last_name = "Lebedev", middle_name = "Alexeyevich") == "Lebedev Ilya Alexeyevich"
diff --git a/level_1/4.py b/level_1/4.py
index 4b4cbe5..4522ac4 100644
--- a/level_1/4.py
+++ b/level_1/4.py
@@ -3,7 +3,7 @@
 from constants import ___
 
 
-def calculate_age(date_of_birth: ___) -> ___:
+def calculate_age(date_of_birth: datetime.date) -> int:
     pass
 
 
diff --git a/level_1/5.py b/level_1/5.py
index 0728530..9b06931 100644
--- a/level_1/5.py
+++ b/level_1/5.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def is_correct_email(raw_email: ___) -> ___:
+def is_correct_email(raw_email: str) -> bool:
     pass
 
 
diff --git a/level_1/6.py b/level_1/6.py
index 7cb57fc..b4150fd 100644
--- a/level_1/6.py
+++ b/level_1/6.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def is_loan_amount_too_big(loan_amount_usd: ___, max_loan_amount_for_user_usd: ___) -> ___:
+def is_loan_amount_too_big(loan_amount_usd: int, max_loan_amount_for_user_usd: int | None) -> bool:
     pass
 
 
diff --git a/level_1/7.py b/level_1/7.py
index 68c6890..912fdc0 100644
--- a/level_1/7.py
+++ b/level_1/7.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def send_email(header: ___, text_content: ___, send_to: ___) -> ___:
+def send_email(header: str, text_content: str, send_to: str) -> None:
     pass
 
 
diff --git a/level_1/8.py b/level_1/8.py
index 8ba8083..8e7a17f 100644
--- a/level_1/8.py
+++ b/level_1/8.py
@@ -1,10 +1,10 @@
 import decimal
 import uuid
 
-from constants import ___
+from constants import none_type
 
 
-def get_user_balance(user_id: ___) -> ___:
+def get_user_balance(user_id: uuid.UUID) -> decimal.Decimal | None:
     pass
 
 
diff --git a/level_1/9.py b/level_1/9.py
index fb7fc80..1f70d43 100644
--- a/level_1/9.py
+++ b/level_1/9.py
@@ -3,7 +3,7 @@
 from constants import ___
 
 
-def is_correct_int(raw_int: ___) -> ___:
+def is_correct_int(raw_int: str | None) -> bool:
     pass
 
 
diff --git a/level_2/1.py b/level_2/1.py
index c6ead64..f6ebd55 100644
--- a/level_2/1.py
+++ b/level_2/1.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def get_avg_currency_rate(rates_history: ___) -> ___:
+def get_avg_currency_rate(rates_history: list[float]) -> float:
     pass
 
 
diff --git a/level_2/10.py b/level_2/10.py
index 69f7bd0..71d934f 100644
--- a/level_2/10.py
+++ b/level_2/10.py
@@ -1,7 +1,8 @@
 from constants import ___
 
 
-def is_point_in_square(point: ___, left_upper_corner: ___, right_bottom_corner: ___) -> ___:
+
+def is_point_in_square(point: tuple[int, int], left_upper_corner: tuple[int, int], right_bottom_corner: tuple[int]) -> bool:
     pass
 
 
diff --git a/level_2/2.py b/level_2/2.py
index e2ab2aa..e9d4a9b 100644
--- a/level_2/2.py
+++ b/level_2/2.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def is_recovery_code_correct(code: ___, user_codes: ___) -> ___:
+def is_recovery_code_correct(code: str, user_codes: list[str]) -> bool:
     pass
 
 
diff --git a/level_2/3.py b/level_2/3.py
index 8487e4b..1b98a7f 100644
--- a/level_2/3.py
+++ b/level_2/3.py
@@ -1,9 +1,9 @@
 import decimal
 
-from constants import ___
+from constants import __
 
 
-def get_transaction_amount(transaction_id: ___, transactions_amounts_map: ___) -> ___:
+def get_transaction_amount(transaction_id:int,  transactions_amounts_map: dict[int, decimal.decimal]) -> dict[int, decimal.decimal] | None:
     pass
 
 
diff --git a/level_2/4.py b/level_2/4.py
index 791b2e0..8136322 100644
--- a/level_2/4.py
+++ b/level_2/4.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def ban_users(users_ids: ___) -> ___:
+def ban_users(users_ids: set[int]) -> int:
     pass
 
 
diff --git a/level_2/5.py b/level_2/5.py
index 2b0ce2d..b6b86f4 100644
--- a/level_2/5.py
+++ b/level_2/5.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def get_current_user() -> ___:
+def get_current_user() -> tuple[str, int, str]:
     pass
 
 
diff --git a/level_2/6.py b/level_2/6.py
index af117e9..2f466cb 100644
--- a/level_2/6.py
+++ b/level_2/6.py
@@ -1,10 +1,11 @@
 from constants import ___
 
 
-def is_name_male(name: ___, name_gender_map: ___) -> ___:
+def is_name_male(name: str, name_gender_map: dict[str, bool]) -> bool:
     pass
 
 
+
 if __name__ == "__main__":
     name_gender_map = {
         "John": True,
diff --git a/level_2/7.py b/level_2/7.py
index f8f7f6f..1408a00 100644
--- a/level_2/7.py
+++ b/level_2/7.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def calculate_total_spent_for_user(user: ___) -> ___:
+def calculate_total_spent_for_user(user: tuple[str, int, list[int]]) -> int:
     pass
 
 
diff --git a/level_2/8.py b/level_2/8.py
index 1801197..5eaa8ab 100644
--- a/level_2/8.py
+++ b/level_2/8.py
@@ -1,7 +1,7 @@
 from constants import ___
 
 
-def calculate_total_spent_for_users(users_ids: ___, users_ids_to_users_map: ___) -> ___:
+def calculate_total_spent_for_users(users_ids: set[int], users_ids_to_users_map: dict[int, tuple[str, int, list[int]]]) -> int:
     pass
 
 
diff --git a/level_2/9.py b/level_2/9.py
index 693804a..aef0e95 100644
--- a/level_2/9.py
+++ b/level_2/9.py
@@ -1,12 +1,11 @@
 import datetime
-
 from constants import ___
 
 
-def parse_receipt(raw_receipt: ___) -> ___:
+def parse_receipt(raw_receipt: str) -> tuple[int, datetime.date, list[tuple[str, int, float]]]:
     pass
 
-
+ 
 if __name__ == "__main__":
     assert parse_receipt(
         raw_receipt="Кассовый чек 12 Продажа Позиции: ...",
diff --git a/level_3/1.py b/level_3/1.py
index 9578f5e..dd659f6 100644
--- a/level_3/1.py
+++ b/level_3/1.py
@@ -1,9 +1,10 @@
 import decimal
 
 from constants import ___
+from typing import Mapping
 
 
-def get_transaction_amount(transaction_id: ___, transactions_amounts_map: ___) -> ___:
+def get_transaction_amount(transaction_id: int, transactions_amounts_map: Mapping[int, decimal.Decimal]) -> decimal.Decimal | None:
     # попробуйте использовать typing.Mapping: transactions_amounts_map по смыслу не должен меняться внутри функции
     pass
 
diff --git a/level_3/2.py b/level_3/2.py
index edde766..49cd03a 100644
--- a/level_3/2.py
+++ b/level_3/2.py
@@ -1,7 +1,14 @@
 from constants import ___
+from typing import TypedDict
 
 
-def calculate_total_spent_for_user(user: ___) -> ___:
+class User(TypedDict):
+    "name": str
+    "age": int
+    "transactions_sums": list[int]
+
+
+def calculate_total_spent_for_user(user: User) -> int:
     # попробуй тут воспользовать typing.TypedDict
     pass
 
@@ -14,3 +21,10 @@ def calculate_total_spent_for_user(user: ___) -> ___:
             "transactions_sums": [102, 15, 63, 12],
         },
     ) == 192
+
+# Вопрос:
+# допустимо ли в аннотации типов указывать TypeDict следующими способами?
+#def calculate_total_spent_for_user(user: TypedDict('User', 'name' = str, 'age' = int, 'transactions_sums' = list[int])) -> int:
+#def calculate_total_spent_for_user(user: TypedDict('User', {'name': str, 'age': int, 'transactions_sums': list[int]})) -> int:
+
+# пока на основе документации понимаю, что оба варианта верны, и именно в таком виде, без квадратных скобок
\ No newline at end of file
diff --git a/level_3/3.py b/level_3/3.py
index 50ed15a..d61a19e 100644
--- a/level_3/3.py
+++ b/level_3/3.py
@@ -1,10 +1,11 @@
 from constants import ___
 
 
-def create_user(user_name: ___, user_age: ___, after_created: ___) -> ___:
-    pass
 
+def create_user(user_name: str, user_age: int, after_created: function) -> None:
+    pass
 
+ 
 def send_test_email(user_id: int) -> None:
     pass