code: protected function loadFareBasis($options)
      {
          $short = AttributeDetails::OVERRIDE_FAREBASIS; //Short var name because I get complaints from phpcs. No judging.
          if (in_array($short, $options->overrideOptions) && !empty($options->pricingsFareBasis)) {
              foreach ($options->pricingsFareBasis as $pricingFareBasis) {
                  $this->pricingFareBase[] = new PricingFareBase($pricingFareBasis);
              }
          }
      }
docs: @param FarePricePnrWithBookingClassOptions|LowerFareOpt|LowestFareOpt $options