code: public void marshall(FunctionConfiguration functionConfiguration, ProtocolMarshaller protocolMarshaller) {
  
          if (functionConfiguration == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(functionConfiguration.getFunctionId(), FUNCTIONID_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getFunctionArn(), FUNCTIONARN_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getName(), NAME_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getDataSourceName(), DATASOURCENAME_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getRequestMappingTemplate(), REQUESTMAPPINGTEMPLATE_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getResponseMappingTemplate(), RESPONSEMAPPINGTEMPLATE_BINDING);
              protocolMarshaller.marshall(functionConfiguration.getFunctionVersion(), FUNCTIONVERSION_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.