initHuaweiTokenStream method
Developers should not use this field directly Initialize HUAWEI token stream
Implementation
Future<void> initHuaweiTokenStream() async {
  print("TUIKitPush | Dart | HUAWEI | init");
  Push.getToken("");
  Push.getTokenStream.listen(_onHuaweiTokenEvent, onError: _onHuaweiTokenError);
  return;
}