def __missing__(self, key):
        if self.default_factory is None:
            raise KeyError(key)
        else:
            ret = self[key] = self.default_factory(name=key)
            return ret
def test_dummy_response():
    from rasa.nlu.emulators.no_emulator import NoEmulator

    em = NoEmulator()
    data = {"intent": "greet", "text": "hi", "entities": {}, "confidence": 1.0}
    assert em.normalise_response_json(data) == data