{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897030,-0.441969,0.000000,0.000000,0.287252,-0.583013,0.759988,0.000000,-0.334936,0.679793,0.652456,0.000000,-2139318.011790,4342006.461239,4139498.235976,1],    "boundingVolume": {    "region": [2.028499,0.710768,2.028679,0.710873,0.000000,8.674350]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/3/20_1780789.b3dm"}}}