docs: public void marshall(DescribeFolderContentsRequest describeFolderContentsRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (describeFolderContentsRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(describeFolderContentsRequest.getAuthenticationToken(), AUTHENTICATIONTOKEN_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getFolderId(), FOLDERID_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getSort(), SORT_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getOrder(), ORDER_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getLimit(), LIMIT_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getMarker(), MARKER_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getType(), TYPE_BINDING);
              protocolMarshaller.marshall(describeFolderContentsRequest.getInclude(), INCLUDE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }