Edit File: ConfigurationInterface.php
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Config\Definition; /** * Configuration interface. * * @author Victor Berchet <victor@suumit.com> */ interface ConfigurationInterface { /** * Generates the configuration tree builder. * * @return \Symfony\Component\Config\Definition\Builder\TreeBuilder The tree builder */ public function getConfigTreeBuilder(); }