{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942588,-0.333959,0.000000,0.000000,0.187156,-0.528242,0.828211,0.000000,-0.276003,0.779008,0.562999,0.000000,-1762255.159219,4973902.296304,3570638.507554,1],    "boundingVolume": {    "region": [1.911235,0.597979,1.911359,0.598042,0.000000,8.675371]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/9/21_1250138.b3dm"}}}