Expanded class hierarchy of SectionStorageManagerInterface in Drupal 9
- interface \Drupal\Component\Plugin\Discovery\DiscoveryInterface
- interface \Drupal\Component\Plugin\Discovery\CachedDiscoveryInterface
- interface \Drupal\Component\Plugin\PluginManagerInterface
- interface \Drupal\Core\Render\ElementInfoManagerInterface
- interface \Drupal\layout_builder\SectionStorage\SectionStorageManagerInterface