name : _typed_dict_helper.py """Used to test `get_type_hints()` on a cross-module inherited `TypedDict` class This script uses future annotations to postpone a type that won't be available on the module inheriting from to `Foo`. The subclass in the other module should look something like this: class Bar(_typed_dict_helper.Foo, total=False): b: int In addition, it uses multiple levels of Annotated to test the interaction between the __future__ import, Annotated, and Required. """ from __future__ import annotations from typing import Annotated, Generic, Optional, Required, TypedDict, TypeVar OptionalIntType = Optional[int] class Foo(TypedDict): a: OptionalIntType T = TypeVar("T") class FooGeneric(TypedDict, Generic[T]): a: Optional[T] class VeryAnnotated(TypedDict, total=False): a: Annotated[Annotated[Annotated[Required[int], "a"], "b"], "c"]