class ListenerType {
  static const simpleMsgListener = 'simpleMsgListener';
  static const initSDKListener = 'initSDKListener';
  static const groupListener = 'groupListener';
  static const advancedMsgListener = 'advancedMsgListener';
  static const conversationListener = 'conversationListener';
  static const friendListener = 'friendListener';
  static const signalingListener = 'signalingListener';
  static const msgSendProgressListener = "msgSendProgressListener";
}
