{

  "columns": [
    { "label": "#", "fromKey": "data1", "type": "TEXT", "minWidth": true },
    { "label": "Test Column 2", "fromKey": "data2", "type": "TEXT" },
    { "label": "Test Column 3", "fromKey": "data3", "type": "TEXT" }
  ],

  "rows": [{
    "data1": "1",
    "data2": "Test Data 2",
    "data3": "Test Data 3"
  }]

}