code: private void sendPublishStartNotify() {
          Status publishStatus = new Status(StatusCodes.NS_PUBLISH_START);
          publishStatus.setClientid(getStreamId());
          publishStatus.setDetails(getPublishedName());
  
          StatusMessage startMsg = new StatusMessage();
          startMsg.setBody(publishStatus);
          pushMessage(startMsg);
          setState(StreamState.PUBLISHING);
      }
docs: Sends publish start notifications