hook_event_dispatcher-8.x-2.04/modules/preprocess_event_dispatcher/tests/modules/preprocess_event_dispatcher_test/preprocess_event_dispatcher_test.services.yml

services:
  preprocess_event_test.factory:
    class: Drupal\Tests\preprocess_event_dispatcher\Unit\Helpers\FakePreprocessEventFactory
    abstract: true
    public: false
  preprocess_event_test.factory.page:
    parent: preprocess_event_test.factory
    arguments: ['page']
    tags:
      - { name: preprocess_event_factory }
  preprocess_event_test.factory.html:
    parent: preprocess_event_test.factory
    arguments: ['html']
    tags:
      - { name: preprocess_event_factory }