{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949277,-0.314442,0.000000,0.000000,0.175704,-0.530435,0.829317,0.000000,-0.260224,0.785594,0.561360,0.000000,-1661494.679026,5015921.812310,3560220.656175,1],    "boundingVolume": {    "region": [1.890597,0.595975,1.890734,0.596082,0.000000,8.723768]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1360244.b3dm"}}}