Expanded class hierarchy of ExtensionInstallStorage in Drupal 9
- class \Drupal\Core\Config\FileStorage implements StorageInterface
- class \Drupal\Core\Config\InstallStorage
- class \Drupal\config_test\TestInstallStorage
- class \Drupal\Core\Config\ExtensionInstallStorage
- class \Drupal\Core\Config\InstallStorage