src/_typed_dict_test_helper.py

from __future__ import annotations

from typing import Generic, Optional, T
from typing_extensions import TypedDict


# this class must not be imported into test_typing_extensions.py at top level, otherwise
# the test_get_type_hints_cross_module_subclass test will pass for the wrong reason
class _DoNotImport:
    pass


class Foo(TypedDict):
    a: _DoNotImport


class FooGeneric(TypedDict, Generic[T]):
    a: Optional[T]