def METHOD_NAME() -> None:
    """
    Test that we can individually address parameters "a" and "b", which belong
    to the same group.
    """
    dummy = Dummy("dummy")
    assert dummy.a() == 0
    assert dummy.b() == 0
    dummy.a(3)
    dummy.b(6)
    assert dummy.a() == 3
    assert dummy.b() == 6
    dummy.b(10)
    assert dummy.a() == 3
    assert dummy.b() == 10