Expanded class hierarchy of TestDomainObject in Zircon Profile 8
- class \Drupal\early_rendering_controller_test\TestDomainObject
- class \Drupal\early_rendering_controller_test\AttachmentsTestDomainObject implements AttachmentsInterface uses AttachmentsTrait
- class \Drupal\early_rendering_controller_test\CacheableTestDomainObject implements CacheableDependencyInterface