{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950042,-0.312122,0.000000,0.000000,0.174058,-0.529800,0.830070,0.000000,-0.258540,0.786948,0.560241,0.000000,-1650739.818650,5024542.895216,3553107.802133,1],    "boundingVolume": {    "region": [1.888141,0.594611,1.888304,0.594742,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1459297.b3dm"}}}