Expanded class hierarchy of CacheableMetadata in Drupal 9
- class \Drupal\Core\Cache\CacheableMetadata implements RefinableCacheableDependencyInterface uses RefinableCacheableDependencyTrait
- class \Drupal\Core\Cache\Context\ContextCacheKeys
- class \Drupal\Core\Render\BubbleableMetadata implements AttachmentsInterface uses AttachmentsTrait