{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897889,-0.440221,0.000000,0.000000,0.282604,-0.576408,0.766739,0.000000,-0.336598,0.686537,0.644491,0.000000,-2149862.153141,4384924.576505,4088824.597087,1],    "boundingVolume": {    "region": [2.026578,0.700323,2.026705,0.700392,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852320.b3dm"}}}