I have following setup:

@pytest.fixture
def check_answer() -> t.Callable[[dict[str, t.Any], dict[str, t.Any], int], None]:
    def _check(
        first_response: dict[str, t.Any],
        second_response: dict[str, t.Any],
        named_optional_arg: int = 1,
    ) -> None:
        
        *assert stuff*

    return _check

I then pass check_answer as a parameter to test_my_answer and I want to call it as check_answer(ans1, ans2, named_optional_arg=5). The optional argument is used very rarely, so it is important that the name is present when it is called, however, when I include the name, I get an error from mypy because of an unexpected keyword argument.