def METHOD_NAME():
    class DummyOne(Interface):
        # explicitly without @eval_results
        @staticmethod
        def __call__(arg=None, **kwargs):
            eq_(kwargs['common_on_failure'], None)
            eq_(kwargs['common_report_status'], None)
            eq_(kwargs['common_report_type'], None)
            # and even those we didn't pass
            eq_(kwargs['common_result_renderer'], "generic")
            # with dissolution of _OLD_STYLE_COMMANDS yoh yet to find
            # a real interface which had return_type (defined in
            # eval_params) but no @eval_results
            # eq_(kwargs['return_type'], "generator")
            eq_(arg, "nothing")
            yield "nothing is"
            yield "magical"
    # just to be sure no evil spirits chase away our Dummy
    val = call_from_parser(DummyOne, _new_args(arg="nothing"))
    eq_(val, ["nothing is", "magical"])