Optional fields: "name", "probability", and "time_index"

{
  "name": "Regions of interest",
  "type": "Multiple 2D bounding boxes",
  "boxes": [
    {
      "name": "ROI 1",
      "corners": [
        [
          92.6,
          136.0,
          0.5
        ],
        [
          54.8,
          136.0,
          0.5
        ],
        [
          54.8,
          95.5,
          0.5
        ],
        [
          92.6,
          95.5,
          0.5
        ]
      ],
      "probability": 0.95
    },
    {
      "name": "ROI 2",
      "corners": [
        [
          92.6,
          136.0,
          0.5
        ],
        [
          54.8,
          136.0,
          0.5
        ],
        [
          54.8,
          95.5,
          0.5
        ],
        [
          92.6,
          95.5,
          0.5
        ]
      ],
      "probability": 0.92,
      "time_index": 0
    }
  ],
  "version": {
    "major": 1,
    "minor": 0
  }
}