@workflow
def my_wf(a: int, b: str) -> (int, str):
    (xx, yy) = t1(a=a)
    d = t2(a=[b, yy])
    return (xx, d)
@workflow
def my_wf(a: int, b: str) -> (int, str):
    (xx, yy) = t1(a=a)
    d = t2(a=[b, yy])
    return (xx, d)