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_request():
    from rasa.nlu.emulators.no_emulator import NoEmulator

    em = NoEmulator()
    norm = em.normalise_request_json({"text": ["arb text"]})
    assert norm == {"text": "arb text", "time": None}

    norm = em.normalise_request_json({"text": ["arb text"], "time": "1499279161658"})
    assert norm == {"text": "arb text", "time": "1499279161658"}