{
  "version": "0.1",
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      "name": "Cube",
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        "type": "Cube",
        "size": {
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        }
      }
    },
    "2": {
      "id": 2,
      "name": "Center",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -12.5,
          "y": -12.5,
          "z": -12.5
        }
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 2,
      "material": "default"
    }
  ]
}