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- <?php
- namespace Drupal\Core\Cache;
- /**
- * Defines an interface for responses that can expose cacheability metadata.
- *
- * @see \Drupal\Core\Cache\CacheableResponseTrait
- */
- interface CacheableResponseInterface {
- /**
- * Adds a dependency on an object: merges its cacheability metadata.
- *
- * For instance, when a response depends on some configuration, an entity, or
- * an access result, we must make sure their cacheability metadata is present
- * on the response. This method makes doing that simple.
- *
- * @param \Drupal\Core\Cache\CacheableDependencyInterface|mixed $dependency
- * The dependency. If the object implements CacheableDependencyInterface,
- * then its cacheability metadata will be used. Otherwise, the passed in
- * object must be assumed to be uncacheable, so max-age 0 is set.
- *
- * @return $this
- *
- * @see \Drupal\Core\Cache\CacheableMetadata::createFromObject()
- */
- public function addCacheableDependency($dependency);
- /**
- * Returns the cacheability metadata for this response.
- *
- * @return \Drupal\Core\Cache\CacheableMetadata
- */
- public function getCacheableMetadata();
- }
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