{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950782,-0.309861,0.000000,0.000000,0.172928,-0.530615,0.829785,0.000000,-0.256578,0.787288,0.560664,0.000000,-1638217.335184,5026724.759176,3555798.301853,1],    "boundingVolume": {    "region": [1.885786,0.595131,1.885901,0.595245,0.000000,8.766633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1448436.b3dm"}}}