from flytekit import task, workflow


@task
def task_a(x: int) -> int:
    return x


@task
def task_b(x: int) -> int:
    return x


@workflow
def test(x: int) -> int:
    a = task_a(x=x)
    b = task_b(x=x)
    a >> b
    return a


if __name__ == "__main__":
    test(x=1)

TypeError: unsupported operand type(s) for >>: 'Promise' and 'Promise'