@task
def t1(a: int) -> typing.NamedTuple('OutputsBC', t1_int_output=int, c=str):
    a = (a + 2)
    return (a, ('world-' + str(a)))
@task
def t1(a: int) -> typing.NamedTuple('OutputsBC', t1_int_output=int, c=str):
    a = (a + 2)
    return (a, ('world-' + str(a)))