tileset.json

{
  "asset": {
    "version": "1.0"
  },
  "properties": {
    "Height": {
      "minimum": 20,
      "maximum": 20
    }
  },
  "geometricError": 70,
  "root": {
    "refine": "ADD",
    "boundingVolume": {
      "region": [
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      ]
    },
    "geometricError": 0,
    "content": {
      "uri": "instancedOct32POrientation.i3dm"
    }
  }
}