code: public String marshalService(ServiceWrapper service) {
      Gson gson = new Gson();
  
      Service jsonService = composeServiceFromServiceWrapper(service);
  
      String jsonString = gson.toJson(jsonService);
  
      return jsonString;
    }
docs: Translate the ServiceWrapper into the wireline string.  See {@link ServiceWrapper}
  
  @param service the instance of the ServiceWrapper
  @return the wireline string