def _unwrapped_call(call: Optional[Callable[..., Any]]) -> Any:
    if call is None:
        return call  # pragma: no cover
    unwrapped = inspect.unwrap(_impartial(call))
    return unwrapped


def _impartial(func: Callable[..., Any]) -> Callable[..., Any]:
    while isinstance(func, partial):
        func = func.func
    return func


@dataclass
class Dependant: