{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943936,-0.330129,0.000000,0.000000,0.184229,-0.526764,0.829807,0.000000,-0.273369,0.781640,0.560633,0.000000,-1745419.183852,4990658.226271,3555597.191070,1],    "boundingVolume": {    "region": [1.907189,0.595092,1.907285,0.595207,0.000000,8.770031]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/2_1276672.b3dm"}}}