Expanded class hierarchy of TraceableEventDispatcher in Devel 4.x
- class \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher implements \Symfony\Component\EventDispatcher\EventDispatcherInterface
- class \Drupal\search_api_solr\Solarium\EventDispatcher\Psr14Bridge implements \Psr\EventDispatcher\EventDispatcherInterface
- class \Drupal\webprofiler\EventDispatcher\TraceableEventDispatcher implements EventDispatcherTraceableInterface