All classes that implement TitleBlockPluginInterface in Drupal 9
- class \Drupal\Core\Block\Plugin\Block\PageTitleBlock implements TitleBlockPluginInterface
- class \Drupal\social_core\Plugin\Block\SocialPageTitleBlock implements ContainerFactoryPluginInterface
- class \Drupal\social_core\Plugin\Block\SocialPageTitleBlock implements ContainerFactoryPluginInterface
- class \Drupal\social_core\Plugin\Block\SocialPageTitleBlock implements ContainerFactoryPluginInterface
- class \Drupal\social_core\Plugin\Block\SocialPageTitleBlock implements ContainerFactoryPluginInterface