BundleEntityStorageInterface

class \Drupal\Core\Entity\ContentEntityNullStorage implements \Drupal\Core\Entity\ContentEntityStorageBase
class \Drupal\Core\Entity\ContentEntityStorageBase extends \Drupal\Core\Entity\ContentEntityStorageInterface, \Drupal\Core\Entity\DynamicallyFieldableEntityStorageInterface, \Drupal\Core\Entity\BundleEntityStorageInterface implements \Drupal\Core\Entity\EntityStorageBase
class \Drupal\Core\Entity\Sql\SqlContentEntityStorage extends \Drupal\Core\Entity\Sql\SqlEntityStorageInterface, \Drupal\Core\Entity\Schema\DynamicallyFieldableEntityStorageSchemaInterface, \Drupal\Core\Entity\EntityBundleListenerInterface implements \Drupal\Core\Entity\ContentEntityStorageBase
class \Drupal\ctools_entity_mask\MaskContentEntityStorage implements \Drupal\Core\Entity\ContentEntityStorageBase
class \Drupal\user\UserStorage extends \Drupal\user\UserStorageInterface implements \Drupal\Core\Entity\Sql\SqlContentEntityStorage

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