{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949287,-0.314410,0.000000,0.000000,0.175650,-0.530335,0.829393,0.000000,-0.260221,0.785676,0.561248,0.000000,-1661475.309559,5016438.054342,3559507.072493,1],    "boundingVolume": {    "region": [1.890563,0.595840,1.890700,0.595946,0.000000,8.680512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361818.b3dm"}}}