Expanded class hierarchy of Container in Drupal 9
- class \Drupal\Component\DependencyInjection\Container implements \Symfony\Component\DependencyInjection\ContainerInterface, \Symfony\Contracts\Service\ResetInterface
- class \Drupal\Component\DependencyInjection\PhpArrayContainer
- class \Drupal\Core\DependencyInjection\Container