code: protected function performFetchUsingSelectedMethod($rsItems)
      {
          return $this->fetchUsing['method'] === 'GetNext'
              ? $rsItems->GetNext($this->fetchUsing['params'][0], $this->fetchUsing['params'][1])
              : $rsItems->Fetch();
      }
docs: Choose between Fetch() and GetNext($bTextHtmlAuto, $useTilda) and then fetch
  
  @param \CDBResult $rsItems
  @return array|false