docs: public void marshall(PersonDetail personDetail, ProtocolMarshaller protocolMarshaller) {
  
          if (personDetail == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(personDetail.getIndex(), INDEX_BINDING);
              protocolMarshaller.marshall(personDetail.getBoundingBox(), BOUNDINGBOX_BINDING);
              protocolMarshaller.marshall(personDetail.getFace(), FACE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }