code: protected function loadOffers(PnrCancelOptions $params)
      {
          if (!empty($params->offers)) {
              $tmp = new Cancel\Elements(Elements::ENTRY_ELEMENT);
  
              foreach ($params->offers as $offerRef) {
                  $tmp->element[] = new Element($offerRef, Element::IDENT_OFFER_TATTOO);
              }
  
              $this->cancelElements[] = $tmp;
          }
      }
docs: @param PnrCancelOptions $params
  @return void