queryRoomMembersAttributes method
Implementation
Future<Map<dynamic, dynamic>> queryRoomMembersAttributes(
    dynamic userIDs, String roomID) async {
  final result = await promiseToFuture(
          ZIM.getInstance()!.queryRoomMembersAttributes(userIDs, roomID))
      .catchError(_handleError);
  return _jsObjectToMap(result);
}