docs: public void marshall(Fragment fragment, ProtocolMarshaller protocolMarshaller) {
  
          if (fragment == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(fragment.getFragmentNumber(), FRAGMENTNUMBER_BINDING);
              protocolMarshaller.marshall(fragment.getFragmentSizeInBytes(), FRAGMENTSIZEINBYTES_BINDING);
              protocolMarshaller.marshall(fragment.getProducerTimestamp(), PRODUCERTIMESTAMP_BINDING);
              protocolMarshaller.marshall(fragment.getServerTimestamp(), SERVERTIMESTAMP_BINDING);
              protocolMarshaller.marshall(fragment.getFragmentLengthInMilliseconds(), FRAGMENTLENGTHINMILLISECONDS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }