File: //usr/local/lib/python3.10/test/_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
"""
from __future__ import annotations
from typing import Optional, TypedDict
OptionalIntType = Optional[int]
class Foo(TypedDict):
a: OptionalIntType