code: public function offerVerify(RequestOptions\OfferVerifyOptions $options, $messageOptions = [])
      {
          $msgName = 'Offer_VerifyOffer';
  
          return $this->callMessage($msgName, $options, $messageOptions);
      }
docs: Offer_VerifyOffer
  
  To be called in the context of an open PNR
  
  @param RequestOptions\OfferVerifyOptions $options
  @param array $messageOptions (OPTIONAL)
  @return Result
  @throws Client\InvalidMessageException
  @throws Client\RequestCreator\MessageVersionUnsupportedException
  @throws Exception