All classes that implement WebformAttachmentInterface in Webform 8.5
- class \Drupal\webform_attachment\Element\WebformAttachmentBase implements WebformAttachmentInterface
- class \Drupal\webform_attachment\Element\WebformAttachmentToken
- class \Drupal\webform_attachment\Element\WebformAttachmentTwig
- class \Drupal\webform_attachment\Element\WebformAttachmentUrl
- class \Drupal\webform_entity_print_attachment\Element\WebformEntityPrintAttachment