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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\Console\Helper;
  13  
  14  /**
  15   * HelperInterface is the interface all helpers must implement.
  16   *
  17   * @author Fabien Potencier <fabien@symfony.com>
  18   */
  19  interface HelperInterface
  20  {
  21      /**
  22       * Sets the helper set associated with this helper.
  23       *
  24       * @param HelperSet $helperSet A HelperSet instance
  25       */
  26      public function setHelperSet(HelperSet $helperSet = null);
  27  
  28      /**
  29       * Gets the helper set associated with this helper.
  30       *
  31       * @return HelperSet A HelperSet instance
  32       */
  33      public function getHelperSet();
  34  
  35      /**
  36       * Returns the canonical name of this helper.
  37       *
  38       * @return string The canonical name
  39       */
  40      public function getName();
  41  }