def _SendPingMessage(self):
    self._log.debug('Sending ping message.')
    self._ping_ar = AsyncResult()
    self._last_ping_start = time.time()
    self._send_queue.put((self._ping_msg, self._EMPTY_DCT))
    gevent.spawn(self._PingTimeoutHelper)
    return self._ping_ar
Write a JSON serializable data structure to the multistore.
dataset/ETHPy150Open steveniemitz/scales/scales/thriftmux/sink.py/SocketTransportSink._SendPingMessage--crossover with--dataset/ETHPy150Open google/oauth2client/oauth2client/contrib/multistore_file.py/_MultiStore._locked_json_write