How To Call A Model Or Class Using Custom Directory Path In Codeigniter 4

Guy, I need support here For Codeigniter 4. 
Please Help. I have a folder and file in a root directory with full path: TestingWebsite\app\CronJob\ExportAlert.php 
The File Is Not In Controller. Inside the ExportAlert.php the code:

Code:

<?php

           
date_default_timezone_set("Asia/Jakarta");
$current_time = date("h:i a");
$begin = "9:00 am";
$end  = "3:30 pm";

$now = DateTime::createFromFormat('H:i a', $current_time);
$timebegin = DateTime::createFromFormat('H:i a', $begin);
$timeend = DateTime::createFromFormat('H:i a', $end);

if (!($now > $timebegin && $now < $timeend)) {
return false;
}


$Utility = new \App\Models\Dennis_utility_model(); // Error In Here Class Not Found
$Setting = new \App\Models\Dennis_setting_model();  // Error In Here Class Not Found
$Medoo = new \App\Models\Dennis_medoo_model(); // Error In Here Class Not Found
$Telegram = new \App\Models\Dennis_telegram_model(); // Error In Here Class Not Found


$ExeFile = AmiBroker_Folder.JScript_Main_Folder.Export_Alert;
$Url = $Setting->FPathSetting()['CROSSSERVER']['CURLEXE'];
$Utility->CurlExe($Url, 1, 1, $Setting->FUseEngine64(), $ExeFile);

$myconfig = new \Config\MyConfig();

include 'include/Alert_1.php';       



?>

I want to call the model :

Code:

$Utility = new \App\Models\Dennis_utility_model(); // Error In Here Class Not Found
$Setting = new \App\Models\Dennis_setting_model();  // Error In Here Class Not Found
$Medoo = new \App\Models\Dennis_medoo_model(); // Error In Here Class Not Found
$Telegram = new \App\Models\Dennis_telegram_model(); // Error In Here Class Not Found

Inside the ExportAlert.php

But I got Error: Class Not Found For Every Model I called.

I have a reason why I don't want to put it inside the controller. Because I want to run a scheduled task cron job. And to prevent unauthorized users to run it from the browser. And spam it.

How I can call a model or class from outside controller use a custom directory?

In the file ExportAlert.php, I didn't use the class. And just use a native PHP with the model. Is it possible?

What is the correct way to call it?

Remember this is codeigniter 4 not codeigniter 3.

Thank You