{
  "name": "root",
  "children": [
    {"name": "A",
     "children": [
       { "name": "banana",
          "language": "Javascript",
          "size": 3
       },
       { "name": "orange",
          "language": "Javascript",
          "size": 4
       }
       ],
     "size": 2
    }
  ],
  "size": 1,
  "nbFiles": 5
}
Add example data for graph diagram.
Add example data for graph diagram.
