{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896232,-0.443586,0.000000,0.000000,0.283878,-0.573554,0.768407,0.000000,-0.339914,0.686771,0.642498,0.000000,-2171019.847147,4386386.421146,4076143.058017,1],    "boundingVolume": {    "region": [2.030325,0.697694,2.030458,0.697813,0.000000,42.417147]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/3/1_554920.b3dm"}}}