6 files declare their use of EntityEventType in Entity Events 8

EntityEvent.php in src/Event/EntityEvent.php

EntityEventDeleteSubscriber.php in src/EventSubscriber/EntityEventDeleteSubscriber.php

EntityEventInsertSubscriber.php in src/EventSubscriber/EntityEventInsertSubscriber.php

EntityEventSubscriber.php in src/EventSubscriber/EntityEventSubscriber.php

EntityEventUpdateSubscriber.php in src/EventSubscriber/EntityEventUpdateSubscriber.php

entity_events.module in ./entity_events.module

This module holds functions for entity events.