{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949251,-0.314521,0.000000,0.000000,0.175895,-0.530866,0.829001,0.000000,-0.260188,0.785270,0.561829,0.000000,-1661272.285470,5013862.973279,3563203.139184,1],    "boundingVolume": {    "region": [1.890697,0.596585,1.890799,0.596606,0.000000,11.140338]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1418927.b3dm"}}}