def METHOD_NAME(
    arg: Optional[List[Expr]], *args: Optional[List[Expr]], **kwargs: Optional[List[Expr]]
) -> None:
    f_checker = lambda x: x is None or (
        isinstance(x, list) and all([isinstance(arg, Expr) for arg in x])
    )
    _test_base(f_checker, arg, *args, **kwargs)