{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949043,-0.315148,0.000000,0.000000,0.176088,-0.530274,0.829338,0.000000,-0.260814,0.785421,0.561328,0.000000,-1665264.430833,5014815.736444,3560018.890861,1],    "boundingVolume": {    "region": [1.891340,0.595937,1.891477,0.596043,0.000000,14.029451]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1373896.b3dm"}}}