code: public void marshall(Device device, ProtocolMarshaller protocolMarshaller) {
  
          if (device == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(device.getArn(), ARN_BINDING);
              protocolMarshaller.marshall(device.getName(), NAME_BINDING);
              protocolMarshaller.marshall(device.getManufacturer(), MANUFACTURER_BINDING);
              protocolMarshaller.marshall(device.getModel(), MODEL_BINDING);
              protocolMarshaller.marshall(device.getModelId(), MODELID_BINDING);
              protocolMarshaller.marshall(device.getFormFactor(), FORMFACTOR_BINDING);
              protocolMarshaller.marshall(device.getPlatform(), PLATFORM_BINDING);
              protocolMarshaller.marshall(device.getOs(), OS_BINDING);
              protocolMarshaller.marshall(device.getCpu(), CPU_BINDING);
              protocolMarshaller.marshall(device.getResolution(), RESOLUTION_BINDING);
              protocolMarshaller.marshall(device.getHeapSize(), HEAPSIZE_BINDING);
              protocolMarshaller.marshall(device.getMemory(), MEMORY_BINDING);
              protocolMarshaller.marshall(device.getImage(), IMAGE_BINDING);
              protocolMarshaller.marshall(device.getCarrier(), CARRIER_BINDING);
              protocolMarshaller.marshall(device.getRadio(), RADIO_BINDING);
              protocolMarshaller.marshall(device.getRemoteAccessEnabled(), REMOTEACCESSENABLED_BINDING);
              protocolMarshaller.marshall(device.getRemoteDebugEnabled(), REMOTEDEBUGENABLED_BINDING);
              protocolMarshaller.marshall(device.getFleetType(), FLEETTYPE_BINDING);
              protocolMarshaller.marshall(device.getFleetName(), FLEETNAME_BINDING);
              protocolMarshaller.marshall(device.getInstances(), INSTANCES_BINDING);
              protocolMarshaller.marshall(device.getAvailability(), AVAILABILITY_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.