queryMessageReactionUserList method
Implementation
Future<Map<dynamic, dynamic>> queryMessageReactionUserList(
    dynamic message, dynamic config) async {
  final result = await promiseToFuture(ZIM
          .getInstance()!
          .queryMessageReactionUserList(
              _mapToJSObject(message), _mapToJSObject(config)))
      .catchError(_handleError);
  return _jsObjectToMap(result);
}