Message comes in the data structure as:
            {
                'method': 'some_method',
                'args': ['list', 'of', 'args'],
                'kwargs': {'key': 'value'}
            }

def gotMessage(self, message_id, message):
        """ Message comes in the data structure as:
            {
                'method': 'some_method',
                'args': ['list', 'of', 'args'],
                'kwargs': {'key': 'value'}
            }
        """
        d = defer.maybeDeferred(self._handle_message, message)
        d.addCallback(self.generate_response)
        d.addCallback(lambda resp: self.reply(message_id, resp))
        return d