FilteredPluginManagerInterface

class \Drupal\Core\Block\BlockManager extends \Drupal\Core\Block\BlockManagerInterface, \Drupal\Component\Plugin\FallbackPluginManagerInterface uses \Drupal\Core\Plugin\CategorizingPluginManagerTrait, \Drupal\Core\Plugin\FilteredPluginManagerTrait implements \Drupal\Core\Plugin\DefaultPluginManager
class \Drupal\Core\Condition\ConditionManager extends \Drupal\Core\Executable\ExecutableManagerInterface, \Drupal\Component\Plugin\CategorizingPluginManagerInterface, \Drupal\Core\Plugin\FilteredPluginManagerInterface uses \Drupal\Core\Plugin\CategorizingPluginManagerTrait, \Drupal\Core\Plugin\FilteredPluginManagerTrait implements \Drupal\Core\Plugin\DefaultPluginManager
class \Drupal\Core\Layout\LayoutPluginManager extends \Drupal\Core\Layout\LayoutPluginManagerInterface uses \Drupal\Core\Plugin\FilteredPluginManagerTrait implements \Drupal\Core\Plugin\DefaultPluginManager
class \Drupal\Tests\Core\Plugin\TestFilteredPluginManager extends \Drupal\Core\Plugin\FilteredPluginManagerInterface uses \Drupal\Core\Plugin\FilteredPluginManagerTrait implements \Drupal\Component\Plugin\PluginManagerBase

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