KeyValueStoreExpirableInterface

class \Drupal\Core\KeyValueStore\DatabaseStorageExpirable extends \Drupal\Core\KeyValueStore\DatabaseStorage implements \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface
class \Drupal\Core\KeyValueStore\NullStorageExpirable implements \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface

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