*
* @deprecated in Drupal 8.3.x and will be removed before Drupal 9.0.0.
* Use \Drupal\aggregator\FeedStorageInterface::CLEAR_NEVER instead.
*
* @deprecated in Drupal 8.3.x and will be removed before Drupal 9.0.0.
* Use \Drupal\aggregator\FeedStorageInterface::CLEAR_NEVER instead.