text: 
  import ItemSplitView from '../../splitEditor/view/ItemSplitView';
  import WorkSpaceItemView from './WorkSpaceItemView';
  import WorkSpaceGroupView from './WorkSpaceGroupView';
  import ItemModel from '../../splitEditor/model/ItemModel';
  
  export default ItemSplitView.extend({
      options: {
          itemListItemView: WorkSpaceItemView,
          childViewSelector(model) {
              if (model instanceof ItemModel) { return WorkSpaceItemView; }
  
              return WorkSpaceGroupView;
          }
      }
  });
  