deleteMessages method
      
Future<Map> 
deleteMessages(
    
    
- dynamic messageList,
- String conversationID,
- dynamic conversationType,
- dynamic config,
Implementation
Future<Map<dynamic, dynamic>> deleteMessages(dynamic messageList,
    String conversationID, dynamic conversationType, dynamic config) async {
  final result = await promiseToFuture(ZIM.getInstance()!.deleteMessages(
          _dartValueToJs(messageList),
          conversationID,
          conversationType,
          _mapToJSObject(config)))
      .catchError(_handleError);
  return _jsObjectToMap(result);
}