<?php 
 
/* 
 * This file is part of the Symfony package. 
 * 
 * (c) Fabien Potencier <[email protected]> 
 * 
 * For the full copyright and license information, please view the LICENSE 
 * file that was distributed with this source code. 
 */ 
 
namespace Symfony\Component\Console\Helper; 
 
/** 
 * HelperInterface is the interface all helpers must implement. 
 * 
 * @author Fabien Potencier <[email protected]> 
 */ 
interface HelperInterface 
{ 
    /** 
     * Sets the helper set associated with this helper. 
     * 
     * @param HelperSet $helperSet A HelperSet instance 
     */ 
    public function setHelperSet(HelperSet $helperSet = null); 
 
    /** 
     * Gets the helper set associated with this helper. 
     * 
     * @return HelperSet A HelperSet instance 
     */ 
    public function getHelperSet(); 
 
    /** 
     * Returns the canonical name of this helper. 
     * 
     * @return string The canonical name 
     */ 
    public function getName(); 
} 
 
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