code: protected function prepareTemplate(Template $objTemplate, $arrRowData, $objSettings)
      {
          $objTemplate->setData(array(
              'attribute'        => $this,
              'settings'         => $objSettings,
              'row'              => $arrRowData,
              'raw'              => $arrRowData[$this->getColName()],
              'additional_class' => $objSettings->get('additional_class')
                  ? ' ' . $objSettings->get('additional_class')
                  : ''
          ));
      }
docs: When rendered via a template, this populates the template with values.
  
  @param Template $objTemplate The Template instance to populate.
  
  @param array    $arrRowData  The row data for the current item.
  
  @param ISimpleRenderSetting  $objSettings The render settings to use for this attribute.
  
  @return void