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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Contracts\Cache;
- use Psr\Cache\CacheItemInterface;
- /**
- * Computes and returns the cached value of an item.
- *
- * @author Nicolas Grekas <p@tchwork.com>
- */
- interface CallbackInterface
- {
- /**
- * @param CacheItemInterface|ItemInterface $item The item to compute the value for
- * @param bool &$save Should be set to false when the value should not be saved in the pool
- *
- * @return mixed The computed value for the passed item
- */
- public function __invoke(CacheItemInterface $item, bool &$save);
- }
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