@workflow
def my_wf(a: int, b: str) -> (str, typing.List[str]):
    x = t2(a=b, b=b)
    v = my_subwf(a=a)
    return (x, v)
@workflow
def my_wf(a: int, b: str) -> (str, typing.List[str]):
    x = t2(a=b, b=b)
    v = my_subwf(a=a)
    return (x, v)