<?php 
 
declare(strict_types=1); 
 
namespace Hartmann\Bundle\AppBundle\DependencyInjection; 
 
use Symfony\Component\Config\Definition\Builder\TreeBuilder; 
use Symfony\Component\Config\Definition\ConfigurationInterface; 
 
/** 
 * Class Configuration 
 * 
 * @package Hartmann\Bundle\AppBundle\DependencyInjection 
 */ 
class Configuration implements ConfigurationInterface 
{ 
    public function getConfigTreeBuilder() 
    { 
        $treeBuilder = new TreeBuilder(); 
        $rootNode    = $treeBuilder->root('hartmann_app'); 
 
        return $treeBuilder; 
    } 
}