docs: public void marshall(CaptionDescription captionDescription, ProtocolMarshaller protocolMarshaller) {
  
          if (captionDescription == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(captionDescription.getCaptionSelectorName(), CAPTIONSELECTORNAME_BINDING);
              protocolMarshaller.marshall(captionDescription.getDestinationSettings(), DESTINATIONSETTINGS_BINDING);
              protocolMarshaller.marshall(captionDescription.getLanguageCode(), LANGUAGECODE_BINDING);
              protocolMarshaller.marshall(captionDescription.getLanguageDescription(), LANGUAGEDESCRIPTION_BINDING);
              protocolMarshaller.marshall(captionDescription.getName(), NAME_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }