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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <[email protected]>
   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\Contracts\Service\Attribute;
  13  
  14  use Symfony\Contracts\Service\ServiceSubscriberTrait;
  15  
  16  /**
  17   * Use with {@see ServiceSubscriberTrait} to mark a method's return type
  18   * as a subscribed service.
  19   *
  20   * @author Kevin Bond <[email protected]>
  21   */
  22  #[\Attribute(\Attribute::TARGET_METHOD)]
  23  final class SubscribedService
  24  {
  25      /**
  26       * @param string|null $key The key to use for the service
  27       *                         If null, use "ClassName::methodName"
  28       */
  29      public function __construct(
  30          public ?string $key = null
  31      ) {
  32      }
  33  }