// First, we create an instance of the ACLController class $myAclController = new ACLController(); // Next, we check if the currently logged-in user has access to a particular resource if ($myAclController->checkAccess('admin', 'delete_user')) { // If the user has access, we display the "delete user" page include 'delete_user.php'; } else { // If the user does not have access, we display an error message using the displayNoAccess() method echo $myAclController->displayNoAccess(); }In this example, the `checkAccess()` method is used to check if the currently logged-in user has the role "admin" and the permission "delete_user". If the user has this permission, the "delete_user.php" page is displayed. If not, the `displayNoAccess()` method is called to display an error message. The package/library that ACLController belongs to is not specified in this example, as it could be a custom library developed by the developer or a third-party package.