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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\DependencyInjection\Extension;
  13  
  14  use Symfony\Component\Config\Definition\ConfigurationInterface;
  15  use Symfony\Component\DependencyInjection\ContainerBuilder;
  16  
  17  /**
  18   * ConfigurationExtensionInterface is the interface implemented by container extension classes.
  19   *
  20   * @author Kevin Bond <kevinbond@gmail.com>
  21   */
  22  interface ConfigurationExtensionInterface
  23  {
  24      /**
  25       * Returns extension configuration.
  26       *
  27       * @return ConfigurationInterface|null The configuration or null
  28       */
  29      public function getConfiguration(array $config, ContainerBuilder $container);
  30  }