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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def start(self):
 """ Starts listening to the socket :return: True if the socket has been created """

        # Create the multicast socket (update the group)
        self._socket, self._group = create_multicast_socket(self._group,
                                                            self._port)

        # Start the listening thread
        self._stop_event.clear()
        self._thread = threading.Thread(
            target=self.__read,
            name="MulticastReceiver-{0}".format(self._port))
        self._thread.start()