chamilo-lms2/plugin/ticket/config.install.php

<?php
/* For licensing terms, see /license.txt */

/**
 * Loading of necessary libs
 *
 * @package chamilo.plugin.ticket
 */

require_once '../../main/inc/global.inc.php';
require_once api_get_path(LIBRARY_PATH).'plugin.class.php';

require_once 'src/ticket.class.php';
require_once 'src/ticket_plugin.class.php';