BlockManagerInterface

interface \Drupal\Component\Plugin\CategorizingPluginManagerInterface implements \Drupal\Component\Plugin\PluginManagerInterface; interface \Drupal\Core\Plugin\Context\ContextAwarePluginManagerInterface implements \Drupal\Component\Plugin\PluginManagerInterface; interface \Drupal\Core\Plugin\FilteredPluginManagerInterface implements \Drupal\Component\Plugin\PluginManagerInterface
- interface \Drupal\Core\Block\BlockManagerInterface implements \Drupal\Core\Plugin\Context\ContextAwarePluginManagerInterface, \Drupal\Component\Plugin\CategorizingPluginManagerInterface, \Drupal\Core\Plugin\FilteredPluginManagerInterface

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