{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893976,-0.448116,0.000000,0.000000,0.288717,-0.575981,0.764780,0.000000,-0.341752,0.681784,0.646820,0.000000,-2182799.241827,4354611.915182,4103642.503956,1],    "boundingVolume": {    "region": [2.035370,0.703327,2.035535,0.703489,0.000000,42.859510]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_1991412.b3dm"}}}