ContainerInterface

class \Drupal\Component\DependencyInjection\Container implements \Drupal\Component\DependencyInjection\ContainerInterface, \Symfony\Contracts\Service\ResetInterface
class \Drupal\Component\DependencyInjection\PhpArrayContainer extends \Drupal\Component\DependencyInjection\Container
class \Drupal\Core\DependencyInjection\Container extends \Drupal\Component\DependencyInjection\Container
class \Drupal\Core\DependencyInjection\ContainerBuilder extends \Symfony\Component\DependencyInjection\ContainerBuilder implements \Drupal\Component\DependencyInjection\ContainerInterface