getOnlineUserCount static method
      
Future<int?> 
getOnlineUserCount({ 
    
- required dynamic onSuccess(- int count
 
- required dynamic onError(- CometChatException excep
 
get the total count of online users for your app
method could throw PlatformException with error codes specifying the cause
Implementation
static Future<int?> getOnlineUserCount(
    {required Function(int count)? onSuccess,
    required Function(CometChatException excep)? onError}) async {
  try {
    final result = await channel.invokeMethod('getOnlineUserCount', {});
    if (onSuccess != null) onSuccess(result);
    return result;
  } on PlatformException catch (p) {
    _errorCallbackHandler(null, p, null, onError);
  } catch (e) {
    _errorCallbackHandler(null, null, e, onError);
  }
  return null;
}