code: public void setNotebookInstances(java.util.Collection<NotebookInstanceSummary> notebookInstances) {
          if (notebookInstances == null) {
              this.notebookInstances = null;
              return;
          }
  
          this.notebookInstances = new java.util.ArrayList<NotebookInstanceSummary>(notebookInstances);
      }
docs: <p>
  An array of <code>NotebookInstanceSummary</code> objects, one for each notebook instance.
  </p>
  
  @param notebookInstances
  An array of <code>NotebookInstanceSummary</code> objects, one for each notebook instance.