Expanded class hierarchy of BackendInterface in Acquia Purge 8
- interface \Drupal\purge\Logger\PurgeLoggerAwareInterface extends \Psr\Log\LoggerAwareInterface; interface \Drupal\acquia_purge\Plugin\Purge\Purger\DebuggerAwareInterface
- interface \Drupal\acquia_purge\AcquiaPlatformCdn\BackendInterface