getUser static method
      
Future<User?> 
getUser(
    
- String uid, {
- required dynamic onSuccess(- User user
 
- required dynamic onError(- CometChatException excep
 
Retrieve Particular User Details
uid : The UID of the user for whom the details are to be fetched
Implementation
static Future<User?> getUser(String uid,
    {required Function(User user)? onSuccess,
    required Function(CometChatException excep)? onError}) async {
  try {
    final result = await channel.invokeMethod('getUser', {'uid': uid});
    final User res = User.fromMap(result);
    if (onSuccess != null) onSuccess(res);
    return res;
  } on PlatformException catch (p) {
    _errorCallbackHandler(null, p, null, onError);
  } catch (e) {
    _errorCallbackHandler(null, null, e, onError);
  }
  return null;
}