code: protected function getLabelComment(ModelInterface $model, TranslatorInterface $translator)
      {
          if ($model->getProperty('comment')) {
              return sprintf(
                  $translator->translate('typedesc._comment_', 'tl_metamodel_filtersetting'),
                  StringUtil::specialchars($model->getProperty('comment'))
              );
          }
          return '';
      }
docs: Retrieve the comment for the label.
  
  @param ModelInterface      $model      The filter setting to render.
  @param TranslatorInterface $translator The translator in use.
  
  @return string