SWDB/application/helper/Helper.php

<?php
    /**
     * Base helper file.
     *
     * Provides an empty helper.
     *
     * @category Helper
     */

    /**
     * Helper superclass.
     *
     * Every other entity must inherit from this one. 
     * 
     * @abstract
     * @category Helper
     */
    abstract class Helper{}
?>