{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897730,-0.440547,0.000000,0.000000,0.282887,-0.576457,0.766598,0.000000,-0.336784,0.686287,0.644660,0.000000,-2151051.737613,4383334.992643,4089895.978413,1],    "boundingVolume": {    "region": [2.026940,0.700544,2.027067,0.700613,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857834.b3dm"}}}