{
  "tileAvailability": {
    "constant": 1
  },
  "contentAvailability": [ 
    {
      "constant": 1
    } 
  ],
  "childSubtreeAvailability": {
    "constant": 0
  },
  "subtreeMetadata": {
    "class": "subtree",
    "properties": {
      "author": "Cesium",
      "date": "2022-02-10",
      "credits": ["Data Company 1", "Data Company 2", "Data Company 3"],
      "Height": 1000
    }
  }
}