code: public void marshall(NotebookInstanceSummary notebookInstanceSummary, ProtocolMarshaller protocolMarshaller) {
  
          if (notebookInstanceSummary == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(notebookInstanceSummary.getNotebookInstanceName(), NOTEBOOKINSTANCENAME_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getNotebookInstanceArn(), NOTEBOOKINSTANCEARN_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getNotebookInstanceStatus(), NOTEBOOKINSTANCESTATUS_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getUrl(), URL_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getInstanceType(), INSTANCETYPE_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getCreationTime(), CREATIONTIME_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getLastModifiedTime(), LASTMODIFIEDTIME_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getNotebookInstanceLifecycleConfigName(), NOTEBOOKINSTANCELIFECYCLECONFIGNAME_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getDefaultCodeRepository(), DEFAULTCODEREPOSITORY_BINDING);
              protocolMarshaller.marshall(notebookInstanceSummary.getAdditionalCodeRepositories(), ADDITIONALCODEREPOSITORIES_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.