Expanded class hierarchy of WebformExporterInterface in Webform 6.x
- interface \Drupal\Component\Plugin\PluginInspectionInterface; interface \Drupal\Component\Plugin\ConfigurableInterface; interface \Drupal\Core\Plugin\PluginFormInterface; interface \Drupal\Core\Plugin\ContainerFactoryPluginInterface
- interface \Drupal\webform\Plugin\WebformExporterInterface