def METHOD_NAME():
    # test that old style commands are invoked without any additional arguments
    class DummyOne(Interface):
        @staticmethod
        def __call__(arg=None):
            eq_(arg, "nothing")
            yield "nothing is"
            yield "magical"
    val = call_from_parser(DummyOne, _args(arg="nothing"))
    eq_(val, ["nothing is", "magical"])