def test_wf_tuple_fails():
    with pytest.raises(RestrictedTypeError):

        @task
        def t1(a: tuple) -> (int, str):
            return ((a[0] + 2), (str(a) + '-HELLO'))
def test_wf_tuple_fails():
    with pytest.raises(RestrictedTypeError):

        @task
        def t1(a: tuple) -> (int, str):
            return ((a[0] + 2), (str(a) + '-HELLO'))