docs: public void marshall(InstanceTypeSpecification instanceTypeSpecification, ProtocolMarshaller protocolMarshaller) {
  
          if (instanceTypeSpecification == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(instanceTypeSpecification.getInstanceType(), INSTANCETYPE_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getWeightedCapacity(), WEIGHTEDCAPACITY_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getBidPrice(), BIDPRICE_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getBidPriceAsPercentageOfOnDemandPrice(), BIDPRICEASPERCENTAGEOFONDEMANDPRICE_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getConfigurations(), CONFIGURATIONS_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getEbsBlockDevices(), EBSBLOCKDEVICES_BINDING);
              protocolMarshaller.marshall(instanceTypeSpecification.getEbsOptimized(), EBSOPTIMIZED_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }