Expanded class hierarchy of FeedExpireHandler in Feeds 8.3
- class \Drupal\feeds\FeedHandlerBase implements EntityHandlerInterface uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait, EventDispatcherTrait
- class \Drupal\feeds\FeedClearHandler
- class \Drupal\feeds\FeedExpireHandler
- class \Drupal\feeds\FeedImportHandler