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Edit File: ExtensionFactory.php
<?php /** * Extension Factory * * @package NotificationX\Extensions */ namespace NotificationXPro\Extensions; use NotificationX\GetInstance; use NotificationX\Core\Modules; use NotificationX\Extensions\ExtensionFactory as ExtensionFactoryFree; /** * ExtensionFactory Class */ class ExtensionFactory extends ExtensionFactoryFree { /** * Initially Invoked when initialized. */ public function __construct() { parent::__construct(); // add_filter('nx_extension_classes', [$this, 'extension_classes']); } public function extension_classes($extension_classes){ // $extension_classes[] = ''; return $extension_classes; } }