{
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            "componentType": "UINT16",
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            "name": "Northwest",
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          },
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            "name": "None",
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  "geometricError": 240,
  "root": {
    "boundingVolume": {
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    "implicitTiling": {
      "subdivisionScheme": "QUADTREE",
      "subtreeLevels": 2,
      "availableLevels": 2,
      "subtrees": {
        "uri": "subtrees/1.1/{level}.{x}.{y}.json"
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    "geometricError": 70,
    "refine": "ADD"
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}