def hangup(self, **kwargs):
        return self.append(Hangup(**kwargs))
Create an undefined milestone or fetch one from the database,
dataset/ETHPy150Open twilio/howtos/intercom/twilio/twiml.py/Response.hangup--crossover with--dataset/ETHPy150Open edgewall/trac/trac/ticket/model.py/Milestone.__init__