code: public void marshall(Output output, ProtocolMarshaller protocolMarshaller) {
  
          if (output == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(output.getAudioDescriptions(), AUDIODESCRIPTIONS_BINDING);
              protocolMarshaller.marshall(output.getCaptionDescriptions(), CAPTIONDESCRIPTIONS_BINDING);
              protocolMarshaller.marshall(output.getContainerSettings(), CONTAINERSETTINGS_BINDING);
              protocolMarshaller.marshall(output.getExtension(), EXTENSION_BINDING);
              protocolMarshaller.marshall(output.getNameModifier(), NAMEMODIFIER_BINDING);
              protocolMarshaller.marshall(output.getOutputSettings(), OUTPUTSETTINGS_BINDING);
              protocolMarshaller.marshall(output.getPreset(), PRESET_BINDING);
              protocolMarshaller.marshall(output.getVideoDescription(), VIDEODESCRIPTION_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.