ContainerBuilder

class \Symfony\Component\DependencyInjection\Container implements \Symfony\Component\DependencyInjection\ContainerInterface, \Symfony\Contracts\Service\ResetInterface
- class \Symfony\Component\DependencyInjection\ContainerBuilder extends \Symfony\Component\DependencyInjection\Container implements \Symfony\Component\DependencyInjection\TaggedContainerInterface
  - class \Drupal\Core\DependencyInjection\ContainerBuilder extends \Symfony\Component\DependencyInjection\ContainerBuilder implements \Drupal\Component\DependencyInjection\ContainerInterface
  - class \Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationContainerBuilder extends \Symfony\Component\DependencyInjection\ContainerBuilder