removeRequests method 
    
      
void
removeRequests(
 - List<String> userIds, [
- dynamic isGroup = false
]) 
    
    
  Implementation
  void removeRequests(List<String> userIds, [isGroup = false]) {
  List requestList = cachedMap[requestsKey] ?? [];
  bool needUpdate = false;
  for (var userId in userIds) {
    int index = requestList.indexWhere((element) =>
        element['id'] == userId && element['isGroup'] == isGroup);
    if (index != -1) {
      needUpdate = true;
      requestList.removeAt(index);
    }
  }
  if (needUpdate) {
    cachedMap[requestsKey] = requestList;
    _updateStore();
    ChatUIKit.instance.onFriendRequestCountChanged(newRequestCount());
  }
}